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KMID : 0356420050230010030
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Journal of Korean Andrology
2005 Volume.23 No. 1 p.30 ~ p.32
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A Difference in Testicular Volumes Measured by Prader Orchidometer and Scrotal Ultrasound
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Kwak Kyung-Won
Myung Soon-Chul
Kim Tae-Hyoung
Kim Sae-Chul
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Abstract
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Purpose: The aim of this study was to compare testicular volumes measured by Prader orchidometer and scrotal ultrasound.
Materials and Methods: The volumes of 467 adult male testes were measured by Prader orchidometer and scrotal ultrasound. The testicular volumes on ultrasound were calculated by the formula: length⁓width⁓height⁓0.71. The testicular volumes of the Prader orchidometer were divided into two groups: 15 ml or less, and over 15 ml. The two measurements were compared for each group.
Results: In the group with testicular volumes of 15 ml or less, the testicular volumes measured by orchidometer(13.29⁑1.94 ml) were significantly smaller than those measured by ultrasound(14.83⁑2.76 ml). In contrast, the group with over 15 ml did not show any significant difference in the volumes measured by orchidometer(21.21⁑2.58 ml) versusultrasound(20.77⁑4.26 ml). Mean paired differences of the testicular volumes between the orchidometer and ultrasound were 1.54⁑2.65 ml for the group with 15 ml or less and 0.44⁑3.38 ml for the group over15 ml these values are significantly different.
Conclusions: In cases of testicular volume of 15 ml or less measured by Prader orchidometer, scrotal ultrasound is necessary for an accurate measurement of the volume.
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KEYWORD
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Testicular volume, Prader orchidometer, Scrotal ultrasou
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