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Aug 15, 2024 · Basic terms of relations. anterior is towards the front of the body (Latin: before) posterior is towards the back of the body (Latin: after) superior is towards the top of the body (Latin: above) inferior is towards the bottom of the body (Latin: below) medial is towards the midline (Latin: middle)
- Basic Principles
- Interpreting An X-Ray
- Comparison to Other Imaging Techniques
X-rays are a type of electromagnetic radiation (just like visible light). There are three criteria that must be met to allow electromagnetic radiation to be used for imaging purposes: 1. Ability to createto the electromagnetic radiation at the wavelength required 2. Ability to focusthe radiation on a particular area 3. Ability to detectthe radiatio...
The interpretation of an x-ray film requires sound anatomical knowledge, and an understanding that different tissue types absorb x-rays to varying degrees: 1. High density tissue(e.g. bone) – absorb x-rays to a greater degree, and appear white on the film. 2. Low density tissue(e.g the lungs) – absorb x-rays to a lesser degree, and appear black on ...
The biggest advantage with plain film X-rays is the amount of radiation involved. It offers lower dosagecompared to CT, and certain studies are performed relatively quickly (Chest X-rays). They are often used as an initial screening to rule out anything obvious before an advanced modality is used such as CT or MR. However, plain film X-rays procedu...
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Jun 28, 2024 · The ABCDE approach can be used to carry out a structured interpretation of a chest X-ray: Airway: trachea, carina, bronchi and hilar structures. Breathing: lungs and pleura. Cardiac: heart size and borders. Diaphragm: including assessment of costophrenic angles.
Feb 18, 2013 · The chest x-ray is the most frequently requested radiologic examination. In fact every radiologst should be an expert in chest film reading. The interpretation of a chest film requires the understanding of basic principles. In this article we will focus on: Normal anatomy and variants. Systematic approach to the chest film using an inside-out ...
Chest X-ray Systematic Approach. Locating abnormalities. Key points. The silhouette sign can help locate abnormalities in 3D space within the chest. 'Silhouettes' and their adjacent tissues. Left heart border (left ventricle) - Lingula. Right heart border (right atrium) - Right middle lobe. Left hemidiaphragm - Left lower lobe.
Mar 15, 2012 · Normal anatomy. Being familiar with normal anatomy in chest radiographs increases your chances of detecting an abnormality when one is present, even if you can’t diagnose the condition definitively. Regularly reviewing and presenting radiographs to senior colleagues while on the ward will help.
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Aug 28, 2023 · The differential attenuation of x-ray photons by two adjacent structures defines the silhouette, e.g. heart borders against the adjacent lung segments, and it is the pathological loss of this differentiation, which the silhouette sign refers to.
