Version 2.68

62961-8PhenX - computed tomography (CT) of the abdominal organs protocol 190501Trial

Status Information


Term Description

This protocol is divided into two parts. Part I consists of abdominal computed tomography (CT) imaging to measure liver fat, or hepatic steatosis. Part II is a secondary analysis and consists of abdominal CT imaging to determine the normal distribution of abdominal organ volumes. Organs are outlined by hand on each CT image by using a computer. The organs studied include left and right kidneys, left and right adrenals, spleen, pancreas, and liver; the first lumbar vertebrae are also studied. This measure exposes participants to radiation, so the risk and benefit need to be considered for each individual. Because of the exposure to radiation, this measure should only be performed on a subject when there is a strong indication to do so. Abdominal computed tomography (CT) scans for upper abdominal disorders (liver, pancreas, gallbladder, spleen, adrenal glands) can be done while shielding the pelvis of potentially childbearing women to reduce risk. The Gastrointestinal Working Group (WG) would also like to note the following: 1. estimates of subcutaneous fat and visceral fat can be made with limited assessment of sections at the L3/4 level (Irlbeck et al., 2010); 2. automated volume estimates can be used (with a couple of references); and 3. electronic images should be stored for secondary analysis of organ-specific measures.
Source: Regenstrief LOINC

Fully-Specified Name

PhenX - computed tomography (CT) of the abdominal organs protocol 190501

Additional Names

Short Name
CTabdominal organs proto

Basic Attributes

First Released
Version 2.36
Last Updated
Version 2.66
Change Reason
Updated the PhenX ID from "PhenX.<ID>" to "PX<ID>" in Survey Question Source field to align with the variable identifier used in the PhenX Toolkit.; Added the PhenX protocol ID to the Component to clearly define the protocol version for which this panel is based upon.

Survey Question


Reference Information

Type Source Reference
Article Consensus measures for Phenotypes and Exposures Fatty Liver/Hepatic Steatosis: Speliotes, E. K., Massaro, J. M., Hoffmann, U., Foster, M. C., Sahani, D. V., Hirschhorn, J. N., O'Donnell, C. J., & Fox, C. J. (2008). Liver fat is reproducibly measured using computed tomography in the Framingham Heart Study. Journal of Gastroenterology and Hepatology, 23(6), 894–899.
Article Consensus measures for Phenotypes and Exposures Organ Volume: Geraghty, E. M., Boone, J. M., McGahan, J. P., & Jain, K. (2004). Normal organ volume assessment from abdominal CT. Abdominal Imaging, 29(4), 482–490.
Article Consensus measures for Phenotypes and Exposures Irlbeck, T., Massaro, J. M., Bamberg, F., O'Donnell, C. J., Hoffmann, U., & Fox, C. S. (2010). Association between single-slice measurements of visceral and abdominal subcutaneous adipose tissue with volumetric measurements: The Framingham Heart Study. International Journal of Obesity, 34(4), 781–787.

Member of these Panels

LOINC Long Common Name
62949-3 PhenX domain - Gastrointestinal

Language Variants Get Info

zh-CNChinese (CHINA)
PhenX - 腹部器官计算机断层扫描方案 190501:-:时间点:^患者:-:PhenX
it-ITItalian (ITALY)
PhenX - tomografia computerizzata (TC) degli organi addominali, protocollo:-:Pt:^Paziente:-:PhenX
PhenX - компьютерная томография (КТ) органов живота протокол:-:ТчкВрм:^Пациент:-:PhenX

LOINC FHIR® API Example - CodeSystem Request Get Info