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General Radiology

There is No Such Thing as a Chest X-ray – 3 Off Limit Terms for Chest Radiology

No such thing as chest xray

If you like physics, are particular about the lexicon you use, or are just interested in proper use of the English language, then read along. Otherwise, this doesn’t interest you.

The motivation for this article came from one of my superiors who is keenly interested in proper use of the English language in radiology reports. After all, as radiologists, our dictated report is our main product in healthcare. Its essentially the only thing that most clinicians have from their radiologist that gives them an impression of the quality of care we provide. It should be accurate, clear, and concise.

DISCLAIMER: I am not a perfect, 100% certified expert in the use of the English language. Please forgive typos, grammatical and spelling errors throughout RadiologyPics.

1. There is no such thing as a “chest x-ray!”

All you have to do is ask yourself, “What is an ‘X-ray?'” Allow me to define it for you. An X-ray is electromagnetic radiation of high energy and very short wavelength (between ultraviolet light and gamma rays, as seen in the image of the electromagnetic spectrum below) that is able to pass through many materials opaque to light. Okay, fine, maybe that definition came straight from Google, but its accurate.

Electromagnetic Spectrum

An x-ray is what our radiology technologists use to make an image, which we call a radiograph, and the proper term when the x-ray is used on the thorax to make an image is  a “chest radiograph.” In the end, I suppose we as radiologists can make an exception and allow the clinicians to use the term “chest x-ray,” as nearly everybody refers to it, but really that is the slang term for a radiograph. Now that nearly all images in the U.S. are digital, I suppose we should call them “chest DICOMs” for Digital Imaging and Communications in Medicine (post-publishing edit: I’m joking here. See comment below from “Bill,” in which he appropriately points out that this is ridiculous. If the ultimate goal is to be clear, we should use a language that our clinicians prefer, as long as it isn’t completely incorrect. Perhaps the only people who should be using the term DICOM are PACS IT people and medical physicists).

2. What do you mean by “lung field?” 

lung fields.jpg

The above image really should be self-explanatory. This is what I think of when a clinician says “lung fields.” The reality is that the lungs are divided up into zones, of which most models divide them into three zones from top to bottom, called the West Zones. See below.

West zones lung

These lung “zones” really originated with physiologic descriptions and explanations of the lung, not anatomical. The only real situation in which a radiologist should use the term “lung zone” is when they are faced with interpreting a solo frontal image of the chest, or if, on a two-view chest radiograph, there is difficulty in localizing a certain finding. However, most of the time on two view chest radiograph the radiologist is able to localize a finding to a lobe of the lung, and the term “lung zone” is not required.

3. What do you mean by “infiltrate?”

To infiltrate means to permeate. When you think about the histology of lung tissue, this term is extremely ambiguous. The lung is divided into the alveolar compartment, the interstitial compartment, and the intravascular compartment.

from nature.com

from nature.com

What do you mean when you say there is an “infiltrate?” This could mean a process that is causing interstitial thickening, such as interstitial pulmonary edema. It also could be interpreted to mean that there is alveolar consolidation, such as pneumonia. The bottom line: its ambiguous. It is much better and clearer to use terms such as alveolar consolidation or interstitial thickening to help indicate what the interpreter is thinking. After all, these two processes are caused by different pathology.

In the end, the point is to be clear, because often that report is all we have to represent our quality of care.

Are there other terms that clinicians or radiologists use that are incorrect?

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About radiologypics

I am a radiology physician from California, USA.

Discussion

6 thoughts on “There is No Such Thing as a Chest X-ray – 3 Off Limit Terms for Chest Radiology

  1. These are really nice corrections which most of us are doing routinely. Keep it up fandhighlight other wrongly used terms or which have ambiguities in it,please.

    Posted by Allah Rakha Dar | February 4, 2014, 2:24 am
  2. No one in their right mind is going to use the term “Chest DICOM” to refer to a one or two-view chest x-ray, and I find it ridiculously pretentious that anyone would spend more than 30 seconds contemplating doing so. There are rational limits to the amount of precision that we should employ when describing something. I believe that “chest x-ray” fits the bill perfectly and requires no further improvement.

    Posted by Bill | February 24, 2014, 12:21 pm
    • I agree Bill, it is ridiculously pretentious, especially to use it clinically. If the ultimate goal is to be more clear in our reports, then we should use the language that the clinician is going to understand, in which case “chest x-ray” would work. Thanks for the comment.

      Posted by radiologypics | February 24, 2014, 3:47 pm
  3. Not to be picky… but since you’re being picky… the correct name of a “chest radiograph” is a chest roentgenogram. A radiograph is any image produced using electromagnetic radiation, which includes CT.

    Posted by PK | May 8, 2014, 12:15 pm

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