Podcast Beta
Questions and Answers
What is the most valuable radiographic study for bowel infarction?
What is required for a dedicated single contrast small bowel examination?
What is a limitation of a dedicated single contrast small bowel examination?
How much barium suspension is administered orally for a single contrast examination?
Signup and view all the answers
What is evaluated in a dedicated single contrast small bowel examination?
Signup and view all the answers
What is a characteristic of enteroclysis?
Signup and view all the answers
What is an advantage of enteroclysis over a dedicated single contrast small bowel examination?
Signup and view all the answers
What is true about enteroclysis?
Signup and view all the answers
What is a limitation of a dedicated single contrast small bowel examination in detecting small ulcerations?
Signup and view all the answers
What is the relationship between enteroclysis and a dedicated single contrast small bowel examination?
Signup and view all the answers
Study Notes
Lung Patterns on Chest X-Ray
- Interlobular interstitial spaces may be prominent, but this does not include viral pneumonia
- Alveolar aeration may not be maintained, leading to a reticular or reticulonodular pattern
- The pattern may be focal or bilateral
- Hypovascular lung may appear in pulmonary artery aneurysm, right-to-left shunt, or pulmonary artery stenosis
- It can cause focal lucency or diffuse lucency on the chest X-ray
Pneumococcal Pneumonia on Chest X-Ray
- Characteristics: triangular opacity with the tip toward the hilum, homogeneous, medium intensity
- May have air-bronchogram
Bronchopneumonia on Chest X-Ray
- Characteristics: nodular opacities of varying sizes, usually located on the bases of the lungs
Aspiration Pneumonia on Chest X-Ray
- May have irregular radiolucent areas or irregular areas of increased density
- Can be bilateral and may progress to conglomerate opacities
- Can be caused by aspiration of gastric contents, leading to pulmonary edema
Mycoplasmal Pneumonia on Chest X-Ray
- May have bilateral reticulo-nodular pattern
- Cannot be represented by lobar or segmental opacities
- Is a primary atypical pneumonia
Lung Abscess on Chest X-Ray
- Can be a hydro-aeric image or a consolidation
- Differential diagnosis includes pneumonia, lung cancer, hydatid cyst, and fungal infection
- Can be caused by aspiration of foreign material or surgery of the respiratory tract
Primary TB
- Cavitation can appear
- May have mediastinal adenopathies
- Can give hematogeneous spread
Scintigraphic Method
- Can provide information about ectopic tissue
- Can be done with gamma-emitting radioisotopes
- Tomographic acquisition can be SPECT or PET
- Offers predominantly functional images
131I
- Can be used for diagnostic thyroid scintigraphy
- Can be used for radioiodine therapy of thyroid cancer
- Emits gamma radiation
- Is not a stable isotope of iodine
Radiopharmaceutical
- Can be represented by a radioisotope + vector (tracer) molecule
- May include an alpha-emitting radioisotope
- Can be administered intravenously or orally
- Is eliminated primarily by the renal route
- Offers predominantly functional images
99mTc
- Is the metastable form of technetium
- Has a half-life of 6 hours
- Can be used in SPECT-CT or SPECT
- Emits gamma radiation
- Can be used to highlight glucose-consuming tissues
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Identify the characteristics of lung abnormalities, including interlobular interstitial spaces, alveolar aeration, and vascular patterns. This quiz covers key features of radiological images.
