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Archive for the ‘Radiology’ Category

Mobile Radiologic Learning Tool – Lieberman’s iRadiology

Posted by medliorator on January 20, 2010

Lieberman’s iRadiology app offers 500 radiology cases designed to help medical students and residents improve their plain film,CT, and MRI reading skills.  Available for iPhone.

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How to Read a CXR

Posted by medliorator on August 4, 2009

The first thing to always check is that the film is associated with the correct patient. After doing so, to read a PA view, I utilize a mnemonic called RIP ABCDEFGH. Here is how it works:

  • Rotation: Check to see that the patient is not rotated. You can look at the clavicles and make sure the vertebral processes line up nicely in between them.
  • Inspiration: Check to see that you can see about 9 ribs on each side. Less than 8? It is likely poor inspiration.
  • Penetration: You should be able to see lucencies in the middle of the film representing the intervertebral discs. If there are none, the film is over-penetrated; if they are too well-defined, the film is under-penetrated.
  • Airway: Trace the lucency from the neck down towards the carina. It should be midline and you should be able to see two bronchi splitting from it.
  • Bones: Look at the shoulder joint and trace out each rib contour to check for fractures or other abnormalities.
  • Cardiac Silhouette: Check the right and left heart borders.
  • Diaphragms: These should be well-defined with no obscuration of their margins.
  • Empty Space Fields: Look at the lung fields bilaterally and compare. Don’t forget the apices.
  • Gastric Bubble: Check for a lucency in the left upper abdominal quadrant.
  • Hardware: Make sure the placement of any lines or other hardware is appropriate.

How To Read A Chest X-Ray [The Radiology Blog]

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Forum Filter: IMG Taking a Research Year Before Residency

Posted by medliorator on March 16, 2009

Derm83: I am an IMG applying to Radiology next year but I’d like to do 1-2 years or research so that I can be more competitive.

I’d like to start contacting programs for research but I’m wondering what things I should be looking at in a program:
1. A program that takes a substantial number of residents(eg 10)
2. A top tier program which might make more competitive for other programs VS a low tier program where I might have chance matching into.
3. A place where multiple adjacent programs exists (eg Texas Medical Center) so that I have more chances.
4. Research with the PD or chief.
5. IMG-friendly state vs geographically undesired state.

Do you believe 1-2 years of research will make me competitive enough to land a spot? (Non-US IMG, Step 1 99/230+, 2 months of USCE)

lapooh: I would say go for the most top-tier research gig that you can find. Research at big name academic place tends to make you attractive to the mid tier academic programs as well. How much research will help depends on much much you are able to get out in terms in publications from it. Research should definitely help for radiology, even AMGs going into Radiology tend to have atleast some research experience.You would also do well with stellar reccos from your mentors.
Other things being equal, it might be a good idea to go for a place that has multiple programs, like TMC, because you will be able to network with more people. That might help you get interviews at those places.

With added research, you should be competitive for radiology. But I am no expert myself, just know a lot of radiology-crazy people .

Research before residency [SDN]

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How to Take an MRI

Posted by medliorator on June 24, 2008

A recent study in the journal Surgical Neurology recommended that MRI’s be done while the patient is in the position that causes symptoms.  This is helpful advice.  MRI’s are usually done while the patient is lying down.  Lying down takes stress off the spine and changes the positions of spinal structures, sometime making things look normal when there’s really a problem.

Get Your MRI In The Position That Causes Pain [How to Cope with Pain]

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The Future of X-Ray – Dark Field X-Rays

Posted by medliorator on January 25, 2008

A set of simple silicon filters could dramatically improve the quality of X-ray images produced in hospitals and at airport checkpoints.


X-ray images normally reveal the way different materials, including body tissue, absorb X-ray radiation. finer details are often lost in a fog caused by areas with intermediate radiation-absorbing ability.


researchers led by Franz Pfeiffer of the Paul Scherrer Institute, in Villigen, Switzerland, and including colleagues at the Niels Bohr Institute in Copenhagen, Denmark, have figured out a way to produce much clearer snapshots for little extra cost. The team adapted a technique known as dark-field microscopy, which is normally used by biologists to get a clearer view of cells under a light microscope.


Dark-field microscopy improves the contrast of an image by using only scattered light. Pfeiffer and colleagues have shown that the same principle can be applied to X-ray images. This is done by ignoring conventional X-rays passing through an object and only collecting those that scatter off it instead. The team has developed a set of silicon filters that make this possible: radiation that passes straight through an object can be ignored, and rays bent through a tiny angle, as a result of scattering, are collected.


The process involves taking four separate images, each with the three filters in a slightly different arrangement. Software then compares each snapshot to produce a final high-contrast picture. Although the process means exposing the subject to a higher total dose of radiation, Pfeiffer says this can be justified in some circumstances.


The resulting images reveal physical details that would normally be invisible. For example, since soft tissue and bone differ strongly in their ability to scatter X-ray, the dark-field technique could help a doctor spot small splinters of bone or cartilage after a bad fracture.


The technique is not yet ready for deployment in hospitals as it only works with relatively low-intensity X-rays. However it could be used for some clinical investigations like mammography and Pfeiffer’s team is working on making it suitable for more powerful X-ray machines. They plan to test it on live animals within the next 12 months.

‘Dark field’ X-rays reveal bodies in new detail [NewScientist]

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Daily Radiology

Posted by medliorator on December 19, 2007

Radiology Picture of the Day
A new medical image daily, with a brief description

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