Comparison of RigiScan and formal nocturnal penile tumescence testing in the evaluation of erectile rigidity

Richard Allen, J. K. Smolev, R. M. Engel, C. B. Brendler

Research output: Contribution to journalArticle

Abstract

Evaluation of male erectile function ideally should include measurement of axial rigidity expressed as grams force required to produce penile buckling. An axial rigidity more than 550 gm. is generally considered adequate for vaginal penetration. Unfortunately, this test cannot be done frequently and may disrupt sleep. An alternative method of determining rigidity is to use the RigiScan, which makes repetitive measurements of radial rigidity at the base and tip of the penis expressed as per cent of normal maximum. Previous studies have demonstrated a positive correlation between axial and radial rigidity measurements but they have not been compared in patients with a wide range of erectile function. We performed a prospective study in a consecutive series of patients presenting with impotence comparing axial rigidity measured with a tonometer and radial rigidity measured by RigiScan. Erectile rigidity also was evaluated by a trained, blinded observer. Overall, RigiScan base and tip radial rigidity correlated well with axial rigidity (p 0.1). In this range, the RigiScan failed to discriminate axial rigidities between 450 and 900 gm. buckling force; however, axial rigidity in this same range again correlated well with observer ratings (p

Original languageEnglish (US)
Pages (from-to)1265-1268
Number of pages4
JournalJournal of Urology
Volume149
Issue number5 SUPPL.
StatePublished - 1993

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Penile Erection
Penis
Erectile Dysfunction
Sleep
Prospective Studies

Keywords

  • diagnosis
  • impotence
  • penile erection
  • penis

ASJC Scopus subject areas

  • Urology

Cite this

Comparison of RigiScan and formal nocturnal penile tumescence testing in the evaluation of erectile rigidity. / Allen, Richard; Smolev, J. K.; Engel, R. M.; Brendler, C. B.

In: Journal of Urology, Vol. 149, No. 5 SUPPL., 1993, p. 1265-1268.

Research output: Contribution to journalArticle

Allen, Richard ; Smolev, J. K. ; Engel, R. M. ; Brendler, C. B. / Comparison of RigiScan and formal nocturnal penile tumescence testing in the evaluation of erectile rigidity. In: Journal of Urology. 1993 ; Vol. 149, No. 5 SUPPL. pp. 1265-1268.
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