Evaluation of Testicular Viability by Power Doppler Ultrasonography in Experimentally Induced Acute Testicular Torsion

Kwon, Jong Won; Kim, Woo Sun; Cheon, Jung Hee; Kim, Chong Jai; Kim, In-One; Yeon, Kyung Mo

doi:10.1097/01.rli.0000178837.68891.f2

Cited by 9 publications

(4 citation statements)

References 27 publications

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“…Previously, it has been shown that color Doppler examination is useful for prognosis in dogs with splenic torsion 15 . Also, the progress of a testicular torsion could be predicted by examination of the blood flow pattern 16 . Color Doppler examination of blood flow patterns in inflamed glands appears to be useful in predicting therapy outcome as a reduction in blood flow is associated with the development of a necrosis in the affected gland.…”

Section: Discussionmentioning

confidence: 99%

Ultrasonographic Description of Canine Mastitis

Trasch

Wehrend²,

Bostedt

2007

Vet Radiology Ultrasound

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Ultrasonographic images were acquired of the mammary glands of 40 bitches with physiologically lactating (n = 20) or inflamed glands (n = 20). Echogenicity, structure, homogeneity, thickness, and distinguishability of each tissue layer were assessed. Additionally, overall echogenicity was noted. In the normal lactating gland, different tissues could be differentiated easily. The parenchyma was, without exception, separated from adjacent tissues and was visible as medium echogenic tissue with a coarse-grained structure. The tissue always had some echogenic lines and anechoic areas and was slightly heterogeneous. The loss of distinct layering of the tissue was characteristic of an inflamed mammary gland and inflamed regions had reduced echogenicity. Additionally in five bitches with mastitis, the ultrasound examination was repeated five times for documentation of the progress of the illness and associated changes, supplemented with a color Doppler sonogram to assess changes in blood vessel density. Information from the examinations carried out via B-mode did not allow treatment success to be predicted. Two bitches with reduced blood vessel density centrally had a poor outcome whereas three bitches with increased blood vessel density had a good outcome. Thus, Doppler sonography might be a useful tool to obtain information of the prognosis in acute canine mastitis.

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Section: Discussionmentioning

confidence: 99%

Ultrasonographic Description of Canine Mastitis

Trasch

Wehrend²,

Bostedt

2007

Vet Radiology Ultrasound

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“…Second, we did not use power Doppler to determine the causes of ABF in the testis. However, the power Doppler and CDU appear to have equivalent sensitivity in the diagnosis of torsion [13]. Third, we also did not use CEUS to determine the causes of absent blood flow in the testis.…”

Section: Discussionmentioning

confidence: 98%

Absent Blood Flow in the Testis on Color Doppler Ultrasound: The Causes, Differential Diagnosis and Clinical Value

Chen¹,

Chen²

2020

Advanced Ultrasound in Diagnosis and Therapy

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To investigate the causes, differential diagnosis, and clinical significance of absent blood flow (ABF) in the testis detected by color Doppler ultrasound (CDU) in acute scrotum.Methods: A total of 263 patients with ABF in the testis detected by CDU in our hospital were reviewed retrospectively. However, only 111 patients who underwent surgery were included in this study. The ultrasonographic features of the testis and paratesticular tissue were analyzed. The surgical or surgical-pathologic results were taken as the reference standard to determine the causes of ABF in the testis. Results:The causes of ABF in the testis were testicular torsion (n = 98, torsion group) and non-testicular torsion related diseases (n = 13, non-torsion group, including 8 testicular rupture, 3 epididymitis-orchitis combination with testicular necrosis, and 2 tumors). Tunica albuginea of the testis, diffuse enlarged epididymis, whirlpool sign, and internal echo of the testis were the better parameters for diagnosing the causes of ABF in the testis detected by CDU. And the accuracies of these approaches were 93.7%, 91%, 83.8%, and 81.1%, respectively. Whirlpool sign had a 100% positive predictive value (PPV), and disrupted tunica albuginea of the testis and diffuse enlarged epididymis each had 100% specificity for predicting testicular torsion. When the ultrasonographic findings were combined with these methods to determine the causes, the accuracy was 96.4% (107/111). Conclusion:ABF in the testis detected by CDU is not always indicative of testicular torsion in acute scrotum; Analyzing ultrasound findings of the testis and paratesticular tissue can help with differential diagnosis of the causes of ABF in the testis and guide clinical decision-making.

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“…Allerdings ist anzumerken, dass die Bestimmung des Blutflusses im Gewebe in anderen Fragestellungen der Veterinärmedizin bereits ihren prognostischen Stellenwert bewiesen hat. So konnten Kwon et al (16) bei Ratten mit einer Hodentorsion eine verminderte Durchblutung des Hodenparenchyms mit einer beginnenden Nekrose in Verbindung bringen. Auch im Zusammenhang mit einer Milztorsion ist der Einsatz der Farbdoppler-Sonographie bekannt (23).…”

Section: Diskussionunclassified

Klinische, sonographische und mikrobiologische Untersuchungen bei Hündinnen mit akuter Mastitis

Trasch¹,

Wehrend²

2008

Tierarztl Prax Ausg K Kleintiere Heimtiere

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Zusammenfassung:Gegenstand und Ziel: Klinische, sonographische und mikrobiologische Untersuchungen an inflammatorisch veränderten kaninen Mammakomplexen. Material und Methode: Bei 15 Hündinnen mit Mastitis wurden 21 entzündlich veränderte Mammakomplexe klinisch und sonographisch untersucht. Weiterhin erfolgte eine bakteriologische Untersuchung von Sekret aus diesen Drüsenkomplexen und die Bestimmung der Leukozytenzahl im Blut. Bei fünf Patienten wurde der Krankheitsverlauf über fünf Untersuchungstermine sonographisch verfolgt und um die farbdopplersonographische Ermittlung des Durchblutungsstatus ergänzt. Ergebnisse: Die klinischen Erhebungen zeigen, dass weder das Allgemeinbefinden noch die Leukozytenzahl oder der bakteriologische Befund der Sekretuntersuchung einen Rückschluss auf den weiteren Krankheitsverlauf erlauben. Als typische sonographische Veränderung entzündeter Mammakomplexe gelten der Verlust der Gewebeschichtung, eine verminderte Echogenität, das Vorhandensein von multiplen anechogenen und echogenen Arealen sowie ein verändertes Schallverhalten. Anahnd dieser Charakteristika lässt sich jedoch keine Aussage über den weiteren Krankheitsverlauf treffen. Die sonographische Darstellung von Gaseinschlüssen im Gewebe wirft die Frage nach der Beteiligung von Anaerobiern am Entzündungsprozess der Mamma auf. Der bakteriologische Nachweis von Anaerobiern soll Gegenstand weiterer Untersuchungen sein. Mit der Farbdopplersonographie gelang es, eine Minderdurchblutung des Gewebes bei Erstvorstellung mit der Entwicklung zu einer Mastitis gangraenosa in Verbindung zu bringen. Schlussfolgerung und klinische Relevanz: Die sonographische Untersuchung des Gesäuges ermöglicht eine differenzierte Diagnose der Mastitis, erlaubt die Beschreibung der Ausdehnung der inflammatorischen Prozesse und kann die klinische und bakteriologische Untersuchung ergänzen. Die Untersuchung gestaltet sich einfach und ist als nichtinvasives Verfahren ohne Probleme durchführbar.

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Evaluation of Testicular Viability by Power Doppler Ultrasonography in Experimentally Induced Acute Testicular Torsion

Abstract: Preoperative US including power Doppler examination can predict testicular viability in testicular torsion. Echogenicity of nonviable testes was found to be hypoechoic and inhomogeneous. Power Doppler examination showed no or intermittent peripheral blood flow in nonviable testes.

Cited by 9 publications

References 27 publications

Ultrasonographic Description of Canine Mastitis

Ultrasonographic Description of Canine Mastitis

Absent Blood Flow in the Testis on Color Doppler Ultrasound: The Causes, Differential Diagnosis and Clinical Value

Klinische, sonographische und mikrobiologische Untersuchungen bei Hündinnen mit akuter Mastitis

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