Final answer:
The term for the combined thicknesses of all sections acquired simultaneously with each gantry rotation in MDCT is the total collimation width.
Step-by-step explanation:
In multidetector computed tomography (MDCT), the total collimation width is the term used to describe the combined thicknesses of all the sections acquired simultaneously with each gantry rotation. During a single rotation of the gantry in an MDCT scanner, multiple slices can be acquired at the same time due to the use of multiple rows of detector arrays. This improves the speed of data acquisition and is beneficial for efficient clinical workflow and patient comfort. The total collimation width impacts the resolution and the quality of the image. Therefore, an understanding of the total collimation width is critical in optimizing CT image quality while managing radiation dose.
MDCT, or multidetector computed tomography, is a medical imaging technique where a computer-enhanced cross-sectional X-ray image is obtained. It allows for the acquisition of multiple sections concurrently, which increases the speed and efficiency of the scan.
For example, if a CT scanner has 64 detector rows and each row collects data for a 0.625mm section, the volume coverage would be 64 x 0.625mm = 40mm. This means that the scanner can capture a 40mm thick section of the patient's body with each gantry rotation.