CT software - Rachel December 28, 2003, 10:48 pm
CT software
Posted by Rachel on December 28, 2003, 10:48 pm
195.92.168.166

Hi i am a third year radiography student at sheffield hallam. I was just wondering if anybody knew of any web address or books which describe software advances in ct. Such as metal artefact reduction and maximum intensity programmes. Everything i've found is really complicated. Thank you rachel

 njo/Re: CT software - Nick Oldnall December 29, 2003, 7:51 am

njo/Re: CT software
Posted by Nick Oldnall on December 29, 2003, 7:51 am, in reply to "CT software"
195.107.47.4

I think to geet the most up to date info you will have to look at manufacturers websites or uni papers of perhaps persons doing their phd / MSc research..
Sometimes there are "Blue reports" doing quantative measurements on such topics..
Good luck

Nick

digital radiography - louise December 27, 2003, 11:16 pm digital radiography
Posted by louise on December 27, 2003, 11:16 pm
195.92.67.65

i am at bristol studying radiography and we have an assignment to do on the advantages and disadvantages of digital radiography. do you know of any good web pages or books available.
thanks

 njo/Re: digital radiography - Nick Oldnall December 28, 2003, 8:27 am
njo/Re: digital radiography
Posted by Nick Oldnall on December 28, 2003, 8:27 am
Message modified by board administrator December 28, 2003, 8:38 am

Have a look at the Blue Report (should be avai;able at your uni or placement
Comparative report of digital imaging systems for chest radiography (MDA 01120)

Then use the Manufacturers websites - which may emphasise the plus points! See also KOdak, GE, Agfa, Seimens sites

Some web ref exist at
http://www.uib.no/people/mfale/digital_radiography.htm

Nick
 

all sounding a little similar - christopher o'callaghan December 26, 2003, 11:27 am all sounding a little similar
Posted by christopher o'callaghan on December 26, 2003, 11:27 am
195.92.67.74

hi there all,
just want to start by wishing all a very merry christmas, and a happy new year... even assistant practitioners...

just wanted to remind all of you out there, (espically the ones who said my views were the 'what did you call them, yes i remember 'the idiotic views of the un-informed' i believe...) you heard it here first, the NHS's cheap route to labour is going to back fire on them, make no doubts about it... with the feeling among the students graduating now like it is (as being shown on your wonderful web site...) there will be trouble in the future... not forgetting that these people are the future department managers, and district supers... merry christmas all...

and remember all comes to those who wait... let us see what the new year brings...
 Re: all sounding a little similar - Angry radiography Graduates! January 3, 2004, 11:59 pm
Posted by Angry radiography Graduates! on January 3, 2004, 11:59 pm, in reply to "all sounding a little similar"
62.6.139.12

We would like to support the comments made by Chris there are a lot of newly qualified and undergraduate radiographers that are worried about what the future holds for us and AP's, coming from a trust that is training the AP’s, we have seen that some are able candidates but there training will not allow them to be of a major use to the department other than the GP work or simple # checks (with out pop) but they are still unable to work on there own. Would the money not be better spent on increasing the amount of money available to undergraduate students, and education off the public, of who we are and what we do so were not know as nurses (no offence intended to nurses). We do not hold with some views on this web site, they can be useful. This trust has asked them to work out of hours how many newly qualified radiographers would be happy with this I for one would rather have a students , I would not be happy letting them loose on my family!!

Final Year Dissertasion - Mohammad Faizal Jabaruddin December 26, 2003, 3:41 am Final Year Dissertasion
Posted by Mohammad Faizal Jabaruddin on December 26, 2003, 3:41 am
219.94.41.78

Hi i'm final year student in UKM. Now im doing a paperwork on dose received by medical staff during cardiac angiography.What i do is to monitor the dose received by the cardiologist and the radiographer during coronary angiography with TLD chips placed at the finger,hand ,eye,thyroid and gonad.Could you help me finding past journal or reading related to my study?I find it hard to find the journal related to my study due that we have to subscribe it first.Could you also give me an advice on how im gonna write my paperwork?

 njo/Re: Final Year Dissertasion - Nick Oldnall December 26, 2003, 11:23 am

njo/Re: Final Year Dissertasion
Posted by Nick Oldnall on December 26, 2003, 11:23 am, in reply to "Final Year Dissertasion"
81.174.203.200

Hi there
To read full articles of journal abstracts found on the web you will need to find an academic institution nearby which has subscription services to these, the BJR has had many articles related to you fieled of study and from them you can find more related references.
As for methodology I use a methodology from a book called doing your research project by Herbert Martin.
If you look in the dissertation help section of the website there is a flowchart of the typical process which I feel helps to provide structure for dissertation writing..
Good luck
Nick

 

education for childern about radiology procedures - James "Greg Kuzmeskus December 22, 2003, 11:12 pm
education for childern about radiology procedures
Posted by James "Greg Kuzmeskus on December 22, 2003, 11:12 pm
139.177.224.101

Hi Nick:
I am a Radiographer in Yuma Arizona,(Yuma Regional Medical Center) USA.
I am trying to put together a child's infomation packets/videos/pamphlets for my hospital. Age group can be from 6 to 12 years old. This would be for the most used procedures on a child,vcug/barium studies/etc.
If you have any infomation it would be greatly appreciated.
Respectfully;
James Greg Kuzmeskus rock0@aol.com
 njo/Re: education for childern about radiology procedures - Nick Oldnall December 23, 2003, 8:20 am
njo/Re: education for childern about radiology procedures
Posted by Nick Oldnall on December 23, 2003, 8:20 am, in reply to "education for childern about radiology procedures"
195.107.47.4

Monklands hospital UK does some excellent info leaflets for adults perhaps they may help give you inspiration!
http://www.show.scot.nhs.uk/monklands/ClinicalServices/RadiologyDirectorate/Radiology/radiohome.htm
The UK Royal college of radiologists has some good info a few on children
http://www.rcr.ac.uk/patradio.asp?PageID=396

Let me know if you find any more

Happy Christmas

Nick

Fluoroscopic room design - Tom McCartney December 22, 2003, 3:42 pm Fluoroscopic room design
Posted by Tom McCartney on December 22, 2003, 3:42 pm
62.254.0.16

Leeds University UK
Hi,

Just wondered if anyone could help or had any links about the differences in Fluoroscopic room design with regard to radiation protection?

I've heard there are formulas which calculate the increased thickness of walls required etc. but cant find any guidelines regarding this, any help would be great thanks.
 njo/Re: Fluoroscopic room design - Nick Oldnall December 22, 2003, 3:51 pm njo/Re: Fluoroscopic room design
Posted by Nick Oldnall on December 22, 2003, 3:51 pm, in reply to "Fluoroscopic room design"
195.107.47.4

I have little knowledge of info on this - sorry
I would try the IPEM website and look in the Special Interest grooups section under radiation protection and see if someone can help from that list.
http://www.ipem.org.uk
Or contact your local medical physics department Leeds has a well reknown physics dept with many experts.
They even have their own website www.medphysics.leeds.ac.uk

Nick
 Re: njo/Re: Fluoroscopic room design - Tom McCartney December 22, 2003, 3:58 pm

Re: njo/Re: Fluoroscopic room design
Posted by Tom McCartney on December 22, 2003, 3:58 pm, in reply to "njo/Re: Fluoroscopic room design"
62.254.0.16

Thanks a lot Nick, i'll try those...

 njo/Re: Wilm's Tumour - Nick Oldnall December 22, 2003, 1:28 pm
njo/Re: Wilm's Tumour
Posted by Nick Oldnall on December 22, 2003, 1:28 pm, in reply to "Wilm's Tumour"
195.107.47.4

Hi
I always find the cancer index a good plaece to start as it encopasses the childrens cancer web and has section for public and health professionals plus good links to accredited resources
Nick

http://www.cancerindex.org/ccw/guide2w.htm

 njo/Re: SDF and CR - Nick Oldnall December 21, 2003, 7:35 pm
Posted by Nick Oldnall on December 21, 2003, 7:35 pm, in reply to "SDF and CR"
81.174.203.236

Hi Anthony
Good luck with this project - I must say I am keen to see such research rather than
"six million ways to measure dose doing a wrist"
From my limited experience of CR (mainly Kodak) obtaining a good image in circumstances like you describe is to make another image profile from the normal C Spine Lateral and design the equivelent image curve with a high noise threshold ie remove the low densities in the image, and limit the area to just the C7/T1 region rather than give the equipment a huge range of exposures to cope with.
Good luck if I can help in any way let me know.
Perhaps in these cases it is more prudent to do 2 15 degree lateral obliques encourage accurate readings of these much lower dose images?

Cheers

Nick

UHW Cardiff UK
I'm concerned about the title of one of your images on page 2 of L Spine. It is entitled
Spine-l 1 frx osteoporosis.
While there is radiographic evidence of osteopaenia (as opposed to osteoporosis) the appearance of the vertebra in question suggests the primary cause of fracture is trauma, probably hyperflexion. This is not the usual appearance of anterior wedging due to progressive, osteoporotic collapse. It is noteworthy that the vertebral bodies above and below maintain normal configuration with no loss of height anteriorly or posteriorly.

 Re: imagebase - Nick Oldnall December 21, 2003, 9:51 am
Posted by Nick Oldnall on December 21, 2003, 9:51 am
Message modified by board administrator December 21, 2003, 10:01 am

Hi Malcolm
Thanks for you comments re the image Spine-l 1 frx osteoporosis, I have to agee with your comments though therewas no history of acute trauma as far as I can remember - once again thanks for your vigilence.
PS online file is now ammended...21/12/03
Nick
 

professional practice - Chris December 20, 2003, 1:36 pm Posted by Chris on December 20, 2003, 1:36 pm
80.40.12.53

Canterbury Christ Church University College
England
Dose anyone know where I can get info on professional practice linked with moble radiography on the internet?
This is for an essay and I can't find much if any.
 njo/Re: professional practice - Nick Oldnall December 20, 2003, 3:41 pm
njo/Re: professional practice
Posted by Nick Oldnall on December 20, 2003, 3:41 pm, in reply to "professional practice"
81.174.206.238

Have a look at the occupational standards webpage - mobile radiography is one of the listed standards.
Nick

 njo/Re: Recent Poll - Nick Oldnall December 18, 2003, 9:28 pm

Posted by Nick Oldnall on December 18, 2003, 9:28 pm, in reply to "Recent Poll"
81.174.205.58

Hi Emma
When the results were collected I was able to look at the computer addresses (like I know you are sending this from an AOL linked machine at 8.47 pm) and time of voting those diqualified had multiple votes from the same machine in a very short space of time ie repeated votes from the same computer and with votes indicating a maximum positve mark in every catagory! this appeared different from the "normal" pattern of the other votes leading me to suspect some form of irregularity!
For Example the results below - though I hasten to add I cannot prove anything!

1858086 4/18/2003 15:45 194.66.84.42 Robert Gordon 5 5 5 15
1818605 04/03/2003 14:49 194.66.84.42 Robert Gordon 5 5 5 15
1818713 04/03/2003 15:52 194.66.84.42 Robert Gordon 5 5 5 15
1818718 04/03/2003 15:53 194.66.84.42 Robert Gordon 5 5 5 15
1818720 04/03/2003 15:54 194.66.84.42 Robert Gordon 5 5 5 15
1818721 04/03/2003 15:54 194.66.84.42 Robert Gordon 5 5 5 15
1820641 04/04/2003 13:25 194.66.84.42 Robert Gordon 5 5 5 15


Good to hear you like xray2000 and that it is useful


Merry xmas

Nick


 

electives - shanaz begum December 18, 2003, 10:10 am Posted by shanaz begum on December 18, 2003, 10:10 am
136.148.1.142

southbank uni, london
hi
I need some advice on how i can go about in searching for hospitals that i can go for my electives in june (abroad). me and my friend have set our herats on going to dubai for our electives and we are stuck at the moment. we need to organise it soon. so that its not left to the last minute. could u pls help us it would be much apprecited.
thanks
njo/Re: electives - Nick Oldnall December 18, 2003, 12:20 pm

Posted by Nick Oldnall on January 10, 2004, 9:32 am, in reply to "electives"
81.174.200.174

The Bangor Radiography Uni has electives in KSA they may be able to help or advise you..
Nick

Posted by shanaz on January 28, 2004, 10:59 am, in reply to "njo/Re: electives"
136.148.1.142

im not sure exaxtly where that is. what is KSA?
 

Osteosarcoma - Alex December 15, 2003, 1:11 pm I am a 3rd year student at Sheffield University currently doing a poster presentation on the role of IT on the diagnosis and management of a choosen pathology. I choosen to look at osteosarcoma and I was wondering whether anyone would know the difference between osteosarcoma & osteogenic sarcoma? I know that osteosarcoma is categorised into different groups according to the loation of the tumour within the bone and its histologic composition. I many of the text books that I have looked at they either talk about one or the other. Are they the same thing or is osteogenic sarcoma the childhood form of the disease?
If anyone knows or has any useful web sites that could explain this to me I would be greatful.

Thanks
 njo/Re: Oateosarcoma - Nick Oldnall December 15, 2003, 1:50 pm Hi Alex
Same thing...
Osteogenic Sarcoma (osteosarcoma) is a bone forming cancer. It is the most frequent type of bone tumour and is most common between the ages of 15 to 25. Over 90% of tumours are located in the metaphysis (the growing ends of the bone), the most common sites are the bones around the knee which account for 80% of cases. Osteosarcomas vary greatly in radiological and pathological features and therefore needs careful diagnosis to differentiate this from other bone tumours. Most are high grade intramedullary osteosarcomas, about 5% are low grade lesions, some are secondary osteosarcomas (for example those caused by radiation therapy).
http://www.cancerindex.org/ccw/guide2o.htm

You may like to look at
http://www.med.ufl.edu/medinfo/ortho/ostsarc.htm#A2
 Re: njo/Re: Oateosarcoma - Alex December 15, 2003, 2:08 pm

Thanks!  

njo/Re: best exposures for facial bones - Nick Oldnall December 11, 2003, 5:32 pm Hi Orla
You need to consider the possible options for the projections. Facial bones image series may include.

OM
OM 30
Lateral

Then for each one the possible imaging Methods available.

ie for an OM options are:

Supine reverse OM on trolley
Supine modified OM on trolley
Supine reverse OM using an isocenric machine
Erect OM ercet bucky
Erect OM schoenander skull unit

The lateral gives you more options of
grid/no grid
short / long FFD
Broad / fine focus

Remeber that a phantom will not suffer from patient movement unsharpness!

Do this for each option
Then decide by using a phantom skull the optimum image quality by deciding on a gold standard and marking each technique against that standard.
Record the dose for each method (Easiest using a DAP meter but take care with field size variation
Then correlate the image quality score against the dose and decide the optimum combination

Hope that helps

Nick
 

C-Spine (neck/soft tissue) x-ray - Lucille December 11, 2003, 3:05 pm I am a patient in Massachusetts, USA and found your site from a link on AuntMinnie.com.
I would very much appreciate your taking a look at the image on the following link:

http://groups.msn.com/LosingFace/necksofttissue.msnw

I would appreciate your opinion as to whether the area between the arrows indicates a narrowing of the airway caused from the base of the tongue retracting in an abnormal manner.

I have not been able to breathe for 2 1/2 years as my tongue retracts with my head in an upright position. This film was taken in the emergency room but has been read as normal. Meanwhile, I gasp for every breath.

The report above the image is from the hospital. Below the image is an opinion I received from a kind radiologist on AuntMinnie.com. I would like some more input as I feel very intimidated by my doctors who tell me there is nothing wrong. This happened from a face/neck lift. I awoke from anesthesia unable to breathe with my tongue pulling back into my airway. I have had to keep my head down and neck flexed in order to breathe and swallow ever since that day. I was perfectly normal and healthy before. The dysphasia has been documented by a modified barium swallow.

I am very grateful for your help.

 njo/Re: C-Spine (neck/soft tissue) x-ray - Nick Oldnall December 11, 2003, 5:34 pm Posted by Nick Oldnall on December 11, 2003, 5:34 pm, in reply to "C-Spine (neck/soft tissue) x-ray"
195.107.47.4

Sorry I camnt comment on these images as I am a radiographer who specialises in taking high quality images not a radiologist who reads the images..
All the best

Nick
 

anode heel effect - laurie December 11, 2003, 2:34 am Posted by laurie on December 11, 2003, 2:34 am
64.252.118.37

I don't fully understand the anode heel effect and it's relation to body positioning. If anyone could help me out i would appreciate it as i have an exam tomorrow and i heard mention of this being on the exam. thanx--laurienjo/Re: anode heel effect - Nick Oldnall December 11, 2003, 8:00 am Look in the Rad Tech section and you will find!
PS the site has a search engine on the entry page you can use to see if xray2000 already has the information you need.
With regard to clinical application if a body part is thicker one end than the other tha anode should be aligned to that end - a typical example is the AP thoracic spine where the patient should be positioned with the head at the anode end.

However - unless the collimator is open to its limits you will not often notice the effect, some manufacturers limit the opening of the collimator to prevent the anode heal effect being noticeable - and offset the limited covergae by increasing the FFD to 115 cm, some skull units with small anode angles and have limited film coverage.

Nick

Posted by Nick Oldnall on December 9, 2003, 10:15 pm, in reply to "xray"
81.174.201.162

Hi
Can you give some more details of the method you have used ie measuring device / generator Kv range etc...
In general the radiation output with Kv increase in the range 60 - 90 Kv is usually found to be related to the square of the increase in Kv.

Nick
 

Radiographic Technology Assignment - Adam December 8, 2003, 9:01 pm Posted by Adam on December 8, 2003, 9:01 pm
195.93.33.10

Hi
I have to design a fluoroscopy room which is used mainly for Barium studies. I would be very grateful of any websites, journals that will help me decide which generators, tables, computer equipment etc. i should use in it.
Cheers

Adam
 njo/Re: Radiographic Technology Assignment - Nick Oldnall December 8, 2003, 9:27 pmPosted by Nick Oldnall on December 8, 2003, 9:27 pm, in reply to "Radiographic Technology Assignment"
80.229.131.25

Have a look at the Medical Devices Agency + Associated sitespublications - your placement hospital should have them.. they review equipment and sometimes do comparisons..
Then have a look at manufacturers sites they have the latest equipment on them and sometimes example hospital depts
Nick

appendicitis - ger December 6, 2003, 12:24 pmPosted by ger on December 6, 2003, 12:24 pm
193.1.172.149

hey,im a student in university college dublin...
i have a presentation to do on "current opinion of imaging of appendicitis".im just writing this message in yhe hope that you might be able to point me to any useful sites and/or articles on this subject.
i am only a second year student so i do not know much info on ultrasound or the other modalities that may be used to image the vermiform appendix.
any help would be appreciated...thanks.
 njo/Re: appendicitis - Nick Oldnall December 6, 2003, 8:40 pm Posted by Nick Oldnall on December 6, 2003, 8:40 pm, in reply to "appendicitis"
80.229.129.67

Hi there
Try the words "appendicitis" and imaging in google search engine it will give you 100+ articles a quote from one to indictae the quality is copied below

Nick

The radiologic diagnosis of appendicitis has received extensive attention in the recent imaging literature. Work by Laing and Jeffrey suggested that U/S of the right lower quadrant had excellent sensitivity and specificity for the diagnosis of appendicitis. Recent work with abdominal CT has yielded similar results. Newer research has centered on the targeted approach to appendicitis, with non-contrasted spiral CT of the right lower quadrant. Features including inflammatory changes in the periappendiceal fat, fluid collections, and visualization of an enlarged appendix have all been cited as signs of appendicitis. A recent report by Rao et al cite the use of colonic contrast with dedicated helical images of the right lower quadrant as 98% sensitive and specific for appendicitis. An added advantage to CT is the establishment of alternative diagnosis such as adnexal pathology, cecal neoplasms and mesenteric adenitis. The ability to image without IV or oral contrast makes this exam both safer and faster without sacrificng diagnostic ability. 

Re: njo/Re: appendicitis - amy December 7, 2003, 5:00 pmPosted by amy on December 7, 2003, 5:00 pm, in reply to "njo/Re: appendicitis"
62.6.139.12

Hi i did a similar assignment a few months back , theres plenty on BJR and BJM with recent articles on ultrasound and CT.
hope this is of help.

 njo/Re: Scaphoid Fracture Views - Nick Oldnall December 6, 2003, 8:44 pmPosted by Nick Oldnall on December 6, 2003, 8:44 pm, in reply to "Scaphoid Fracture Views"
80.229.129.67

Hi there
This topic is under constant reveiw with many articles in jourmnals and even more student dissertations, I,m not sure what angle you want to take - is it the sensitivity of the imaging sequences or the dose or what? I,m not sure this is the most worthwhile topic for an interesting dissertation or one that will contribute much to the already considerable body of knowledge,
How about a topic which is new and may influence training - work patterns - quality or service to the patient? try and think of something that has made you mad on placement and design a dissertation to address that issue
Nick

 Re: njo/Re: Scaphoid Fracture Views - Maddie Mings December 6, 2003, 10:55 pm Posted by Maddie Mings on December 6, 2003, 10:55 pm, in reply to "njo/Re: Scaphoid Fracture Views"
81.128.66.103

Dear Nick
Many thanks for your response. Oh well, back to the drawing board!! Nothing else seems to be 'grabbing' me yet, however, still a little under a year to go.
If you, or others, have any other thoughts on a good topic (preferably an easy one!!!) please let me know!

Cheers!
Maddie

 Re: njo/Re: Scaphoid Fracture Views - Nick Oldnall December 7, 2003, 8:32 amPosted by Nick Oldnall on December 7, 2003, 8:32 am, in reply to "Re: njo/Re: Scaphoid Fracture Views"
80.229.129.194

A possibly interesting topic would be an investigation into the changing role of imaging in the last 10 years related to studnt training.
You could get the data from your placement RIS system and look at the relative numbers of a seletion of examinations ie what exams are increasing and decreasing and see if training reflects these needs..
ie the number of IVUs going down (in line with RCR guidelins and the number of head CTs going up and if training reflects these trends..

nice study data already available retrospective annalysis no need to wait for data , nice easy stats and all very relevent to training etc

nick

 Re: njo/Re: Scaphoid Fracture Views - Maddie Mings December 7, 2003, 11:51 am Posted by Maddie Mings on December 7, 2003, 11:51 am, in reply to "Re: njo/Re: Scaphoid Fracture Views"
81.128.66.103

Cheers Nick!!
I'll definitely look into this!

Maddie

PS Any chance you could take my exams for me?!!

 Re: njo/Re: Scaphoid Fracture Views - Nick Oldnall December 7, 2003, 2:02 pm Posted by Nick Oldnall on December 7, 2003, 2:02 pm, in reply to "Re: njo/Re: Scaphoid Fracture Views"
195.107.47.4

Hi Maddie
Exams! what are those - sorry its some time since I did my DCR (but have done some education since!)
I have some general hospital data for about 10 years in access format if you want to have a look at it - pleased to help with your studies if I can - sorry about exams though!

 Re: njo/Re: Scaphoid Fracture Views - Maddie Mings December 7, 2003, 11:18 pm Posted by Maddie Mings on December 7, 2003, 11:18 pm, in reply to "Re: njo/Re: Scaphoid Fracture Views"
81.128.66.103

Thanks Nick, do you think you could e-mail them to me, might give me some pointers to start off. Everyone says 'start collecting info NOW!'
Maddie

 Re: njo/Re: Scaphoid Fracture Views - Nick Oldnall December 7, 2003, 11:28 pmPosted by Nick Oldnall on December 7, 2003, 11:28 pm, in reply to "Re: njo/Re: Scaphoid Fracture Views"
81.174.205.233

Hi
The file is for all exams from 1993 to 1999 by quarters it is almost 2 megabytes I can send it you on CD as its a bit big for email..
Mail email me an address dont post it on the website and I will do it this week sometime

nick
 

Re: Scaphoid Fracture Views
Posted by A J Jasim on February 29, 2004, 8:20 pm, in reply to "Scaphoid Fracture Views"
82.37.24.241

Dear Dr Mings
I have no doubt that you will easily find in the litreture that 4 views are more sensitive than 2 views.
If your argument is that we accept the possible missing early because the treatment is the same and we need a more definitive diagnosis 2 weeks later because this has a great implication on the next step.
I am as a cosultant in A&E be able to see the weakness of this logic because the treatment of a difinit fracture is not arguable while the treatment of a clinical suspecion of fracture scaphoid is not agreed and there are as many procedures as the no. of hospitals and many of these way are not acceptable fora diagnosed fracture, which might happen if we follow your suggestion and accept a radiological exam of low sensitivity at early time.
With my high regards
Mr A Jasim


 

15 percent rule - Blanka Krovakova December 4, 2003, 1:19 pm Posted by Blanka Krovakova on December 4, 2003, 1:19 pm
158.36.78.224

student, Oslo State College, Radiographer educ.
RADIOGRAPHY Hi, have you ever heard about The 15 percent rule? An increase kVp by 15 percent, cause a doubling in exposure. It is not really so ???? This rule is only a guide, I think. It seems like that it does not work. Found another rule which is better. What do you think about this 15 percent rule??
 njo/Re: 15 percent rule - Nick Oldnall December 6, 2003, 8:54 pm Posted by Nick Oldnall on December 6, 2003, 8:54 pm, in reply to "15 percent rule"
80.229.129.67

Hi
the trouble with this is that it is very general and not applicable in all cases! It will depend on the KV sensitivity of the film screen combination and the KV you are starting at!

Also it depends what you are refering to - do you mean double the dose or double the film density? they are not always the same thing - or dose to the patient as that is very complax depending on what you mean by dose - skin dose absoebed dose etc...

You could try setting an exposure and fixed field size than for a selection of KV values recording the (DAP) reading for increasing the Kv by 15% and seeing what happens or try the same with a film screen combination and a plain test object and recording the film density then repeating the experiment with a different film screen combinations.

In general if you use 70 Kv and add 15% ie go up to 80 Kv using a general rare earth screen you will have a film of double the density depending on the subject,(ie if you have penetrated the maximum subject density) however some screens ie rare earth are notiacbly more sensitive over 80 Kv so repeating the experiment starting at 75 kV may give very different results,

These general rules tend to work because of the latitude of the imaging system.

Nick
 Re: njo/Re: 15 percent rule - Blanka December 8, 2003, 8:17 am Posted by Blanka on December 8, 2003, 8:17 am, in reply to "njo/Re: 15 percent rule"
158.36.79.88

Thank you very much Nick. We did some measurements with DAP-meter last week and the 15 percent rule did not work (CR). We thought at first that we did some failure, so we found in another book another rule,...Thanks.
 

info on Rothband co. - James December 3, 2003, 7:19 am Posted by James on December 3, 2003, 7:19 am
66.27.164.93

Hi, I was wondering if anyone had some info or experience dealing with the Rothband company.I am in the USA and they are interested in carrying my Jimmyclip x-ray marker. Since I live in the states, I have never heard of them till now. They say they carry all x-ray related items. They are interested in being my UK distributor. Just some info would be nice. Thank you.njo/Re: info on Rothband co. - Nick Oldnall December 3, 2003, 8:27 am Posted by Nick Oldnall on December 3, 2003, 8:27 am, in reply to "info on Rothband co."
80.229.129.203

Rothband's are a long established well respected UK company, in my 25 years in Imaging we have dealt with them many times and have always received good service - I think they would probably make an excellent distributer for the Jimmy clip marker
Good luck

Nick

(no subject) - Marie December 2, 2003, 10:07 am Posted by Marie on December 2, 2003, 10:07 am
193.1.147.240

Hey Nick
I'm a student in ucd can you tell me what sinusitis is and how can it be treated
Thanks njo/sinusitis - Nick Oldnall December 2, 2003, 6:50 pm Posted by Nick Oldnall on December 2, 2003, 6:50 pm, in reply to "(no subject)"
80.229.130.254

sinusitis(sð-n£-sð‚tis) [sinus + G. -itis, inflammation]Inflammation of the lining membrane of any sinus, especially of one of the paranasal sinuses.
(Stemans Medical Dictionary)
The treament depends upon the cause - Try looking up on the web ... it could be infection or allergy in most cases

Nick

Contacts - Tom Johnson (Gloucester) December 2, 2003, 8:14 am Posted by Tom Johnson (Gloucester) on December 2, 2003, 8:14 am
195.107.47.4

Hi Nick, I was wondering where abouts I could obtain the e-mail addresses of departmental X-ray managers within the south west region. I need to contact them and send some information as part of a research project. Or will I have to call them??
Thanks Tom.
 njo/Re: Contacts - Nick Oldnall December 2, 2003, 6:52 pm Posted by Nick Oldnall on December 2, 2003, 6:52 pm, in reply to "Contacts"
80.229.130.254

Hi Tom
Your best bet is to go via the SW Superintendents committee see Nicola Turner for details as she is on that committe..

Nick

Gout - Jenna December 1, 2003, 1:25 pm Posted by Jenna on December 1, 2003, 1:25 pm
195.107.47.229

Hi Nick,
I am a second year asst. practitioner student, working at Papworth and studying through APU. I am doing a case study on Gout and wondered how this would show up on a radiograph. Also are there any other radiographic procedures that aid diagnosis of the condition. Also also, if possible I need to get hold of an upper limb radiograph demonstrating gout if anyone out there can help.
Thanks.njo/Re: Gout - Nick Oldnall December 2, 2003, 8:21 pmPosted by Nick Oldnall on December 2, 2003, 8:21 pm, in reply to "Gout"
80.229.130.254

Hi
Have a look in the Rad Path section G for Gout
Nick
 

Vertebroplasty - Dervla Törnquist December 1, 2003, 11:27 am Posted by Dervla Törnquist on December 1, 2003, 11:27 am
194.103.189.24

Hi,
I'm a radiographer working in Sweden and we have just started treating patients with Vertebroplasty. I was wondering where I could find out more information on the subject. What we would like to know here is how you set up the patient and what tips you have for making it easier for the patient.
Thanks Dervla,
Neuroradiology Department
Lunds University Hospital
Lund
Sweden njo/Re: Vertebroplasty - Nick Oldnall December 2, 2003, 7:10 pm Posted by Nick Oldnall on December 2, 2003, 7:10 pm, in reply to "Vertebroplasty"
80.229.130.254

Hi Dervla good to hear from you again..
Sorry we dont do this procedure where I work but remeber a good web page from the states you could try contacting their techs...
Good luck..
The web page is at http://www.bocaradiology.com/Procedures/Vertebroplasty/Vertebroplasty.html

Cheers

Nick Re: njo/Re: Vertebroplasty - Dervla Tornquist December 18, 2003, 10:20 pmPosted by Dervla Tornquist on December 18, 2003, 10:20 pm, in reply to "njo/Re: Vertebroplasty"
81.224.119.78

Hi Nick,
Thanks for that very useful site. I wrote to some x-ray nurses who are members of the ARNA in the States and got some helpful hints, one of the hospitals had done nearly 300 patients!
All the best for Christmas and the New Year,
Dervla

 

Re; Acceptability Criteria - Tracey Scrivens November 29, 2003, 7:56 pmPosted by Tracey Scrivens on November 29, 2003, 7:56 pm
195.92.67.76

I am a 3rd year diagnostic student from Ipswich. Could anyone tell me if radiologists have an acceptability critera for looking at cervical spine radiographs. I have only found one that was utilised in a study.
 njo/Re: Re; Acceptability Criteria - Nick Oldnall November 29, 2003, 8:17 pm Posted by Nick Oldnall on November 29, 2003, 8:17 pm, in reply to "Re; Acceptability Criteria"
80.229.129.63

hi Tracy
I guess there are two aspects to this
1) the gold standard image requirements
2) Does the image contain enough imformation to solve the clinical question?

I would imagine that all radiologists have very similar criteria when assessing a C-Spine image - but there again there are many different protocols for which images are required in a series (varys considerably in different countries) so I guss number 2 above applies

Nick