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Updated: Aug 11, 2026

Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse
Published on: April 17, 2019
Comparison of angular and combined automatic tube current modulation techniques with constant tube current CT of the
Stefania Rizzo1, Mannudeep Kalra, Bernhard Schmidt
1Department of Radiology, Massachusetts General Hospital, White 270, Boston, MA 02114, USA.
Objective:
The objective of our study was to compare image quality and radiation dose associated with abdominopelvic CT using combined modulation, angular modulation, and constant tube current.
Conclusion:
Compared with using a constant tube current to scan the abdomen and pelvis, the use of a combined modulation technique results in a substantial reduction (42-44%) in radiation dose with acceptable image noise and diagnostic acceptability.
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