Journal article
Radioisotope penile plethysmography: a technique for evaluating corpora cavernosal blood flow during early tumescence
The Journal of nuclear medicine (1978), Vol.30(4), pp.466-473
04/1989
PMID: 2590282
Abstract
Radioisotope penile plethysmography is a nuclear medicine technique which assists in the evaluation of patients with erectile dysfunction. This technique attempts to noninvasively quantitate penile corpora cavernosal blood flow during early penile tumescence using technetium-99m-labeled red blood cells. Penile images and counts were acquired in a steady-state blood-pool phase prior to and after the administration of intracorporal papaverine. Penile counts, images, and time-activity curves were computer analyzed in order to determine peak corporal flow and volume changes. Peak corporal flow rates were compared to arterial integrity (determined by angiography) and venosinusoidal corporal leak (determined by cavernosometry). Peak corporal flow correlated well with arterial integrity (r = 0.91) but did not correlate with venosinusoidal leak parameters (r = 0.01). This report focuses on the methodology and the assumptions which form the foundation of this technique. The strong correlation of peak corporal flow and angiography suggests that radioisotope penile plethysmography could prove useful in the evaluation of arterial inflow disorders in patients with erectile dysfunction.
Details
- Title: Subtitle
- Radioisotope penile plethysmography: a technique for evaluating corpora cavernosal blood flow during early tumescence
- Creators
- A N Schwartz - Department of Radiology and Nuclear Medicine, Seattle Veterans Administration Medical Center, WA 98108M M GrahamG F FerencyR S Miura
- Resource Type
- Journal article
- Publication Details
- The Journal of nuclear medicine (1978), Vol.30(4), pp.466-473
- Publisher
- United States
- PMID
- 2590282
- ISSN
- 0161-5505
- eISSN
- 1535-5667
- Language
- English
- Date published
- 04/1989
- Academic Unit
- Radiology; Radiation Oncology
- Record Identifier
- 9984047675902771
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