Articles
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31 results found
Article
Diffuse hepatic steatosis (grading)
Grading of diffuse hepatic steatosis on ultrasound has been used to communicate to the clinician about the extent of fatty changes in the liver.
Grading using ultrasound B-mode
grade I: diffusely increased hepatic echogenicity but periportal and diaphragmatic echogenicity is still appreciable...
Article
LR2 cirrhosis-associated nodule
LR2 cirrhosis-associated nodules are defined as "probably benign" according to the LI-RADS classification system. They are a common finding in a cirrhotic liver and do not need to be mentioned in the report.
Radiographic features
The nodule must demonstrate all of the following:
diameter <20...
Article
Couinaud classification of hepatic segments
The Couinaud classification (French eponym: pronounced kwee-NO) is currently the most widely used system to describe functional liver anatomy. It is the preferred anatomy classification system as it divides the liver into eight independent functional units (termed segments) rather than relying o...
Article
Bismuth-Corlette classification
The Bismuth-Corlette classification is a classification system for perihilar cholangiocarcinomas, which is based on the extent of ductal infiltration 1,2.
Classification
type I
limited to the common hepatic duct, below the level of the confluence of the right and left hepatic ducts
type II...
Article
CEUS LI-RADS
The Contrast-enhanced Ultrasound Liver Imaging Reporting and Data System (CEUS LI-RADS) is a standardized classification system, algorithm, and terminology for diagnosing hepatocellular carcinoma (HCC) in high-risk patients using CEUS with blood-pool intravenous contrast agents.
The current ver...
Article
Child-Pugh score
The Child-Pugh score is a scoring system to measure the severity of chronic liver disease inclusive of cirrhosis. The intention is to provide a system with which clinicians can objectively communicate about liver function.
The score is composed from several categories:
total bilirubin, μmol...
Article
Balthazar score
The Balthazar score is a subscore within the CT severity index (CTSI) for grading of acute pancreatitis.
The CTSI sums two scores:
Balthazar score: grading of pancreatitis (A-E)
grading the extent of pancreatic necrosis
The Balthazar score was originally used alone, but the addition of a sc...
Article
Neimeier classification of gallbladder perforation
The classification of gallbladder perforation was proposed by Neimeier and later modified by Anderson et al. in 1987, which at the time of writing remains the most widely accepted classification for gallbladder perforation.
According to this classification, there are three main clinical subtype...
Article
Morgan and Superina classification of congenital extrahepatic portosystemic shunts
The Morgan and Superina classification of congenital extrahepatic portosystemic shunts is based on the absence (type 1) or presence (type 2) of intrahepatic portal blood supply 2.
Usage
This classification system is widely used (c. 2020) 2, although there is evidence that all congenital extrah...
Article
CT/MRI LI-RADS
CT/MRI Liver Imaging Reporting and Data System (LI-RADS) is an algorithm for diagnosing and staging hepatocellular carcinoma (HCC) (CT/MRI Diagnostic LI-RADS) or assessing the response of HCC to locoregional treatment (CT/MRI Treatment Response LI-RADS) using CT or MRI with extracellular contras...
Article
Organ Procurement and Transplantation Network (OPTN) classification
Organ Procurement and Transplantation Network (OPTN) is the unified transplantation network in the United States and runs under the administration of United Network for Organ Sharing (UNOS). OPTN classification is an imaging policy of UNOS to determine the eligibility and priority for liver tran...
Article
AAST liver injury scale
The AAST (American Association for the Surgery of Trauma) liver injury scale, revised in 2018, is the most widely used liver injury grading system 3.
The 2018 update incorporates "vascular injury" (i.e. pseudoaneurysm, arteriovenous fistula) into the imaging criteria for visceral injury 3.
Cla...
Article
Hepatoblastoma histological classification
Although hepatoblastomas can be histologically classified into a variety of subtypes, it is important to remember that with the possible exception of small cell undifferentiated subtype, prognosis is independent of histology when adjusted for stage gender and age 1.
major categories
epithelial...
Article
Krenning score of neuroendocrine tumor uptake
The Krenning score is a proposed semi-quantitative method of assessing the degree of tracer uptake on octreotide scintigraphy.
Parameters
Initially designed for assessment of 111In-DTPA on planar imaging, the Krenning score is applicable to SPECT or PET-CT using various radiopharmaceuticals.
...
Article
Disseminated histoplasmosis
Disseminated histoplasmosis, also known as progressive disseminated histoplasmosis, is a severe form of histoplasmosis infection typically seen in immunosuppressed patients, especially in the setting of HIV infection. It results from hematogenous dissemination of the infection, involving multipl...
Article
Strasberg classification of bile duct injury
The Strasberg classification of bile duct injury is a widely used system to anatomically define these injuries by location 1.
Classification
type A: injury to the cystic duct or from minor hepatic ducts draining the liver bed
type B: occlusion of the biliary tree, commonly aberrant ...
Article
CT severity index in acute pancreatitis
The CT severity index (CTSI) is based on findings from an enhanced CT scan to assess the severity of acute pancreatitis. The severity of acute pancreatitis CT findings has been found to correlate well with clinical indices of severity.
The CT severity index sums two scores:
Balthazar score: g...
Article
Komi classification of bile duct cysts
Komi classification of bile duct cysts divides anomalous union of the pancreatico-bile ducts (AUPBD) into three types based on the angle of union of the ducts 1.
Classification
type I: union of the ducts at a right angle to each other
type Ia: without dilatation or
type Ib: with dilatation ...
Article
Todani classification of bile duct cysts
The Todani classification of bile duct cysts classically divides choledochal cysts into five groups.
Classification
Traditional classification
Type I
See: choledochal cyst - type I
account for 80-90% of all bile duct cysts
characterized by fusiform dilation of the extrahepatic bile duct
a...
Article
LI-RADS US Surveillance
Liver Imaging Reporting and Data System Ultrasound Surveillance (LI-RADS US Surveillance) is a standardized system with recommendations for imaging technique, interpretation and reporting for surveillance of hepatocellular carcinoma (HCC) using unenhanced ultrasound in patients at high risk for ...
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