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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1991-8-26
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pubmed:abstractText |
A quantitative test, corporeal 133Xe washout, was developed to detect venogenic impotence. Data were acquired in frame mode after intracorporeal injection of 0.1 ml (1-2 mCi or 37-74 MBq) of 133Xe in saline on one side of the midline just behind the glans in the flaccid state for 20 min. A time-activity curve (TAC) was generated from the region of interest (ROI) at the site of injection and a computer routine was then used to calculate clearance half-time (T1/2) in minutes and flow rate (Q) in ml/100 g tissue/min from corporeal 133Xe clearance. The data from 12 controls and 21 patients with venous leakage were analysed. In patients with venogenic impotence, T1/2 (mean +/- S.D.) was greatly increased (24.4 +/- 10.7 min vs 10.7 +/- 4.6 min in controls, P less than 0.005) whereas Q markedly decreased (2.4 +/- 1.3 ml/100 g tissue/min vs 5.4 +/- 2.3 ml/100 g tissue/min in controls, P less than 0.005). The sensitivity and specificity for detecting venous leakage at the optimal threshold of T1/2 equal to 13 min and Q equal to 3.7 ml/100 g tissue/min were 95 and 75%, respectively. The corporeal 133Xe clearance half-time and flow rate are two simple and clinically useful indices for detecting venous leakage.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0143-3636
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
12
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
203-9
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:1857582-Adult,
pubmed-meshheading:1857582-Aged,
pubmed-meshheading:1857582-Angiography,
pubmed-meshheading:1857582-Erectile Dysfunction,
pubmed-meshheading:1857582-Humans,
pubmed-meshheading:1857582-Male,
pubmed-meshheading:1857582-Middle Aged,
pubmed-meshheading:1857582-Penis,
pubmed-meshheading:1857582-Veins,
pubmed-meshheading:1857582-Xenon Radioisotopes
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pubmed:year |
1991
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pubmed:articleTitle |
Radionuclide imaging clinical study. Corporeal 133Xe washout for detecting venous leakage in impotence.
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pubmed:affiliation |
Department of Nuclear Medicine, Veterans General Hospital, Taipei, Taiwan.
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pubmed:publicationType |
Journal Article
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