Items tagged “refs”
2,967 results found
Article
Perugini grading scale
The Perugini grading scale is a semi-quantitative method of scoring cardiac uptake following injection of 99mTc-DPD, 99mTc-Pyrophosphate or 99mTc-HMDP scintigraphy in the investigation of cardiac amyloidosis (particularly ATTR amyloidosis). The grading scale visually compares tracer uptake in th...
Article
CT protocol
A CT protocol is a set of parameters that specify a specific exam and contrast delivery requirements. When a CT is requested, it will be vetted by a radiologist or radiographer to determine the study is justified and what the most suitable parameters by which that CT should be performed - this m...
Article
Gastrointestinal leiomyoma (overview)
Gastrointestinal leiomyomas are smooth muscle tumors without malignant potential that may develop in any part of the gastrointestinal system:
esophageal leiomyoma
gastric leiomyoma
small bowel leiomyoma
colonic leiomyoma
Article
B ring
The B ring is a mucosal ring that develops in the distal esophagus at the gastro-esophageal junction (Z line).
Terminology
If the ring becomes symptomatic, then it is usually termed a Schatzki ring, although some use the terms synonymously.
Pathology
Its development is thought to be a react...
Article
Bare area (disambiguation)
Bare area is a term that may apply to:
bare area of the liver
bare area of the spleen
glenoid bare area
bare area of a joint where synovium is in direct contact with bone, the site of marginal joint erosion in some inflammatory arthritides
Article
Enteric duplication cyst
Enteric duplication cyst is a broad term for a number of congenital cystic lesions that arise along the gastrointestinal tract. Please see individual articles for further information:
foregut duplication cyst
midgut duplication cyst
tailgut duplication cyst
See also
fetal enteric d...
Article
Traversal of lung fissures
Only a small number of pulmonary diseases are known to directly traverse the lung fissures such that the lung pathology extends from one lobe via the interlobar fissure into an adjacent lobe 1. The finding is most commonly due to primary malignancy, however, some infections are also known to do ...
Article
Patellotrochlear index
Patellotrochlear index is one of the methods to determine patellar height.
Measurement
The patellotrochlear index is measured on a sagittal MR image with the maximal patellar cartilage thickness and the maximal craniocaudal diameter of the patella.
Two measurements are made:
A: the length o...
Article
Soap bubble appearance (differential diagnosis)
Soap bubble appearance describes a multi-loculated bubbly appearance of lesion or structure.
A soap bubble appearance of a bone lesion refers to:
an expansile lytic lesion with internal trabeculations and preserved cortex, usually of benign nature
but may be used to describe more aggressive ...
Article
Isolated diffuse ground-glass opacification
Isolated diffuse ground-glass opacification/opacity (GGO) has a relatively well-defined differential diagnosis although this remains broad and clinical correlation, like many respiratory diseases, is key to diagnosis.
Differential diagnosis
Miller et al. have described the following different...
Article
Extracellular volume - myocardium
Extracellular volume (ECV) refers to the space or volume of a tissue, which is not occupied by cells. Apart from the usual extracellular space, which surrounds the cells of a specific tissue it also includes the intracapillary plasma volume 1,2. It measures the space, which is occupied by the ex...
Article
Coracoacromial arch
Coracoacromial arch is a term for different bony and ligamentous structures, which form the superior border supraspinatus outlet 1-4.
Gross anatomy
It comprises the following anatomical structures from anterior to posterior 1:
coracoid process
coracoacromial ligament
acromioclavicular joint...
Article
MRI of the ankle (an approach)
MRI of the ankle is one of the more frequent examinations faced in daily radiological practice. This approach is an example of how to create a radiological report of an MRI of the ankle with coverage of the most common anatomical sites of possible pathology, within the ankle without claim for co...
Article
Myocardial edema
Myocardial edema refers to an increased water content of the myocardium particularly within the extracellular interstitium 1.
Clinical presentation
Myocardial edema often reflects an acute or subacute cardiac event, most often either ischemic or inflammatory and thus can be associated with che...
Article
MRI of the wrist (an approach)
MRI of the wrist is a fairly frequent examination in musculoskeletal radiology practice and not quite as common in general radiological practice. This approach is an example of how to create a radiological report of an MRI of the wrist with coverage of the most common anatomical sites of possibl...
Article
Myocardial fibrosis
Myocardial fibrosis refers to an increase in collagen volume within the extracellular interstitium of the myocardium 1-3.
Clinical presentation
Myocardial fibrosis leads to diastolic and or systolic dysfunction and patients can present with symptoms associated with cardiac insufficiency arrhyt...
Article
Tibiotalar spurs
Tibiotalar spurs are bony proliferations of the anterior tibial plafond and the anterior talus.
Epidemiology
Tibiotalar spurs are very common in professional athletes 1.
Clinical presentation
They can be found in asymptomatic individuals or in patients who present with anterior ankle pain.
...
Article
Emerging medical imaging technologies
This article is a summary of emerging medical imaging technologies in development or in the early phase of clinical adoption. The methods are listed by modality.
Radiography
dark-field radiography
x-ray phase-contrast imaging
CT
dark-field CT
deep-learning reconstruction
photon counting ...
Article
Diffuse ground-glass opacification
Diffuse or widespread ground-glass opacification/opacity can either manifest as diffuse ground-glass nodules or amorphous areas of diffuse ground glass.
They can carry a wide differential diagnosis 1-3:
diffuse alveolar disease
hydrostatic pulmonary edema
acute respiratory dist...
Article
Pembrolizumab-induced sarcoid-like reaction
Pembrolizumab-induced sarcoid-like reaction is a recently (c.2019) reported phenomenon which has been associated with the use of the programmed cell death protein 1 (PD1) inhibitor pembrolizumab. It could be mistaken for metastatic disease in some situations.
See also
drug induced lung diseas...
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