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Transrectal prostatic ultrasonography: comparison of linear array and radial scanners
Summary
Transrectal ultrasound imaging of the prostate can be done longitudinally or transversely. Both orientations offer unique benefits for visualizing prostate anatomy and abnormalities like cancer, suggesting combined use for thorough evaluation.
Area of Science:
- Urology
- Medical Imaging
Background:
- Transrectal ultrasound (TRUS) probes traditionally image the prostate in a single plane.
- Evaluating the prostate requires comprehensive visualization of its structures.
Purpose of the Study:
- To compare the capabilities of longitudinal and transverse imaging planes in transrectal sonography of the prostate.
- To determine the differences in information yielded by each orientation for prostate evaluation.
Main Methods:
- A retrospective study was conducted on patients undergoing transrectal sonographic examinations.
- Both longitudinal and transverse imaging modalities were utilized with commercially available ultrasound machines.
Main Results:
- Transverse images provided superior detail of the prostate's lateral margins.
- Longitudinal images offered clearer visualization of the prostate apex and base.
- Longitudinal scanners demonstrated improved accuracy in identifying prostatic calculi.
- Both orientations adequately visualized abnormalities, including prostate cancer, with some lesions better seen on specific orientations.
Conclusions:
- While either longitudinal or transverse transrectal ultrasound can yield a satisfactory prostate study, utilizing both methods is recommended for a comprehensive evaluation.
- Combined imaging planes enhance the detection and characterization of prostate pathologies and surrounding structures.