False Negative of Doppler Ultrasonography During Testis Torsion in Animal Model / 대한비뇨기과학회지
Korean Journal of Urology
;
: 1235-1240, 1999.
Artigo
em Coreano
| WPRIM
| ID: wpr-208863
ABSTRACT
PURPOSE:
Our aim is to identify the false negative rate of doppler ultrasonography and to compare color doppler ultrasonography with pathologic findings during testis torsion in animal model. MATERIALS ANDMETHODS:
Seventeen male house rabbits weighted 1.9-2.6kg were examined with doppler ultrasonography as control group and 1 rabbit was orchiectomized as pathologic control group. In 16 rabbits, right spermatic cord was torqued 720o count-clockwise and placed back into the scrotum, and 1, 3, 6, 9, 12, 18, 24, 48 hours after torsion, doppler ultrasonographic and pathologic findings were examined at twisted testicles.RESULTS:
In 1 hour and 3 hours group, false negative rate of doppler ultrasonography were 100% and 6 hours after torsion false nagative rate was 63%. Nine hours after torsion false negative rate was 50%, 12 hours after torsion false negative rate was 25%. But after 18 hours group, all had decreased or disappeared blood flow. Before 9 hours after torsion, there was no pathologic changes in seminiferous tubules. In seminiferous tubules, number of spermatid decreased in 12 hours group and spermatid was absent and spermatocyte were markedly degenerated in 18 hours group. In 48 hours group, spermatid and spermatocyte were absent, number of Sertoli cell decreased markedly and diffuse infarction were seen.CONCLUSIONS:
As time goes by, false negative rate of doppler ultrasonography was decreased. So if blood flow have been normal when doppler ultrasonography was done before 12 hours after torsion, doppler ultrasonography should be re-examined in suspected testis before 12 hours after torsion because of spermatocytes are degenerated after 12 hours.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Escroto
/
Túbulos Seminíferos
/
Cordão Espermático
/
Espermátides
/
Espermatócitos
/
Testículo
/
Ultrassonografia Doppler em Cores
/
Ultrassonografia Doppler
/
Modelos Animais
/
Infarto
Tipo de estudo:
Estudo prognóstico
Limite:
Animais
/
Humanos
/
Masculino
Idioma:
Coreano
Revista:
Korean Journal of Urology
Ano de publicação:
1999
Tipo de documento:
Artigo
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