Type:
Educational Exhibit
Keywords:
Abdomen, CT, Computer Applications-Detection, diagnosis, Technical aspects, Artifacts, Kv imaging
Authors:
K. K. Lau, D. Jackson, A. Kuganesan; VIC/AU
DOI:
10.1594/ranzcr2016/R-0096
Background
According to the American College of Radiology Appropriateness criteria, computed tomography of the abdomen and pelvis (CTAP) is the imaging modality of choice in many clinical situations,
including blunt abdominal trauma,
acute abdominal pain,
suspected abdominal abscess and inflammation,
and in the detection and surveillance of neoplastic conditions (1).
Superior CT image quality allows improved diagnostic accuracy of these conditions and more appropriate management,
particularly in the emergency setting.
CTAP image quality is defined by contrast resolution,
spatial resolution,
image noise and artefacts.
Appropriate CT scanning parameters at correct radiation dose settings are important.
The abdominal organ and pathology assessment can be further limited by a) bodily and breathing motion,
b) beam-hardening artifact from calcifications and devices and c) poor contrast opacification of organs.
The aim of this exhibit is to review various latest imaging techniques that can improve the image quality and diagnostic utility of CT of abdomen and pelvis.