Additional Radiographic ModalitiesUltrasonography has been reported as a cheap and noninvasive modality27; however, it is limited by examiner expertise and difficulty in interpreta- tion.28 Theoretically, ultrasound mightbe advantageous in the pediatric setting because of its noninvasive nature compared with more invasive cavernosography.12 Magnetic reso- nance imaging has been shown to be extremely accurate in diagnosing and localizing corporal injuries, but the modality is severely limited by
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