Articles
Articles are a collaborative effort to provide a single canonical page on all topics relevant to the practice of radiology. As such, articles are written and continuously improved upon by countless contributing members. Our dedicated editors oversee each edit for accuracy and style. Find out more about articles.
12 results found
Article
Hepatobiliary contrast agents and LI-RADS
LI-RADS (Liver Imaging Reporting and Data System) is both a set of standardized terminology and a classification system for imaging findings in liver lesions. The LI-RADS score for a liver lesion is an indication of its relative risk for hepatocellular carcinoma (HCC). The classification system ...
Article
CT liver volumetry in living donor liver transplantation (approach)
CT liver volumetry in living donor liver transplantation is essential imaging studies in preoperative assessment of potential liver transplant donors.
Liver volumetry is performed for the donor liver to calculate the graft volume and remnant liver volume. Preoperative measurement of liver volum...
Article
Imaging in liver transplantation
Imaging in liver transplantation is aimed to evaluate donor and recipient for successful transplantation and its outcome.
Types of liver transplant are discussed here.
Pre-transplant evaluation
Donor
volume of liver
parenchymal disease (diffuse or focal)
vascular anatomy
arterial variatio...
Article
Liver lesions (pediatric)
Pediatric liver lesions are a heterogeneous group that includes infiltrative lesions and those that demonstrate mass-effect. Moreover, they may be solitary or multiple, benign or malignant:
benign liver tumors
malignant liver tumors
Epidemiology
There are differing frequencies of both benign...
Article
Focused Assessment with Sonography for Trauma (FAST) scan
Focused Assessment with Sonography for Trauma (FAST) scan is a point-of-care ultrasound (POCUS) examination performed at the time of presentation of a trauma patient.
It is invariably performed by a clinician, who should be formally trained, and is considered as an 'extension' of the trauma cl...
Article
Point-of-care ultrasound (curriculum)
The point-of-care ultrasound (PoCUS) curriculum is one of our curriculum articles and aims to be a collection of articles that represent the core applications of ultrasonography in a point-of-care setting.
Point-of-care ultrasound refers to ultrasonography which may be simultaneously performed,...
Article
Selective internal radiation therapy
Selective internal radiation therapy (SIRT), also known as transarterial radioembolization (TARE) or hepatic radioembolization, is a relatively new and developing modality for treating non-resectable liver tumors. The procedure consists of a transcatheter injection of radioactive particles via t...
Article
Caudate–right lobe ratio
The caudate-right lobe ratio (C/RL) is used in the assessment of the liver, usually in the setting of cirrhosis, where there is atrophy of the right lobe with hypertrophy of the caudate lobe.
Method
image level: axial slice immediately below the bifurcation of the main portal vein
line 1: pa...
Article
Hyperechoic liver lesions
A hyperechoic liver lesion on ultrasound can arise from a number of entities, both benign and malignant. A benign hepatic hemangioma is the most common entity encountered, but in patients with atypical findings or risk for malignancy, other entities must be considered.
Benign
hepatic hemangiom...
Article
Gallbladder wall thickening
Thickening of the gallbladder wall, usually considered >3 mm, is a non-specific sign of various conditions.
Pathology
Gallbladder wall thickening can be caused by inflammatory, benign, and malignant etiologies. Pseudothickening caused by the normal postprandial state of the contracted gallblad...
Article
Kasai portoenterostomy
Kasai portoenterostomy is the surgery that comprises exposing the porta hepatis by radical excision of all bile duct tissue up to the liver capsule and attaching a Roux-en-Y loop of jejunum to the uncovered liver capsule above the bifurcation of the portal vein creating a portoenterostomy 1.
In...
Article
Geographic appearance
Geographic appearance is a term used in imaging, and other clinical fields (e.g. histopathology) to describe lesions with a well-circumscribed margins with adjacent tissues. The term derives from the somewhat similar appearance of the outline of countries on a map or the clear demarcation forme...
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