Related Experiment Video
Updated: Jun 9, 2026
13:45
Hybrid µCT-FMT imaging and image analysis
Published on: June 4, 2015
Automatic tube current modulation technique for multidetector CT: is it effective with a 64-detector CT?
Yoshinori Funama1, Kazuo Awai, Masahiro Hatemura
1Department of Radiological Sciences, School of Health Sciences, Kumamoto University, Kuhonji, Kumamoto, Japan. yfunama@hs.kumamoto-u.ac.jp
Radiological Physics and Technology
|September 8, 2010
Summary
The automatic tube current modulation (ATCM) technique enables consistent image noise levels in 64-detector CT scans. This advanced imaging method also achieves reduced radiation exposure for patients undergoing lung or abdominal disease evaluations.
Area of Science:
- Radiology
- Medical Imaging
- Computed Tomography
Background:
- Maintaining uniform image noise is crucial for accurate diagnosis in CT scans.
- Radiation dose reduction is a primary goal in medical imaging.
Purpose of the Study:
- To evaluate the efficacy of an automatic tube current modulation (ATCM) technique for achieving consistent image noise levels.
- To determine if ATCM can reduce radiation exposure in 64-detector CT examinations.
Main Methods:
- A 64-detector CT scanner was used with the Smart mA technique (combined angular and longitudinal tube current modulation).
- Image noise and CT numbers were measured in 64 patients across six anatomical regions.
- A constant tube current technique was used as a control for comparison.
Main Results:
- The ATCM technique successfully maintained a constant image noise level across different anatomical regions.
- Mean image noise ranged from 8.40 to 11.31.
- Significant radiation dose reduction rates, ranging from 3.1% to 39.5%, were observed compared to constant tube current.
Conclusions:
- The ATCM technique is effective in achieving uniform image noise levels during 64-detector CT scans.
- This technique offers a viable method for reducing radiation exposure without compromising image quality.
Related Concept Videos
01:10Computed Tomography
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
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...
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...
01:28Imaging Studies for Cardiovascular System V: CT
Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
01:27Imaging Studies III: Computed Tomography
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...