Optimized Protocol for Fast CT Angiography of Lower Limbs Using 160-Row Detector
Related Experiment Video
Updated: Mar 15, 2026
High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals
Published on: December 16, 2022
Adriano Tachibana1, Bianca Oberhuber Dias, Bruna Bonaventura Failla
1From the *Department of Diagnostic Imaging, Hospital Israelita Albert Einstein; †Department of Vascular Surgery, Faculdade de Medicina da Universidade de São Paulo; and ‡Division of Vascular and Endovascular Surgery, Hospital Israelita Albert Einstein, São Paulo, Brazil.
Objective:
We proposed and tested a novel acquisition protocol for optimizing a fast computed tomography angiography using a 160-row detector scanner using a longer contrast injection time coupled with multiphasic rate of injection.
Methods:
A prospective randomized study was performed to compare image quality, contrast enhancement, and radiation dose in 2 groups (a fast acquisition and a widely accepted slow acquisition).
Results:
There was no difference between groups regarding image quality, noise, and diagnostic performance, but we evidenced a trend to higher radiation dose for the fast acquisition protocol.
Conclusions:
An optimized protocol for performing a fast acquisition computed tomography angiography of lower limbs is feasible, has sufficient diagnostic quality, and can be used in selected patients who would benefit from a short-time scan.
More Related Videos
05:32Retrospective Cardiac Gating with A Prototype Small-Animal X-ray Computed Tomograph
Published on: February 21, 2025
10:21Continuous Blood Sampling in Small Animal Positron Emission Tomography/Computed Tomography Enables the Measurement of the Arterial Input Function
Published on: August 8, 2019
Related Concept Videos
01:28Imaging Studies for Cardiovascular System V: CT
01:10Computed Tomography
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
01:27Imaging Studies III: Computed Tomography