Gnudi Giacomo, Volta Antonella, Di Ianni Francesco, Bonazzi Mattia, Manfredi Sabrina, Bertoni Giorgio
Sezione di Radiologia e Diagnostica per Immagini, Dipartimento di Salute Animale, Facoltà di Medicina Veterinaria, Università degli Studi di Parma, Via del Taglio, 43100 Parma, Italy.
Vet Radiol Ultrasound. 2009 May-Jun;50(3):309-11. doi: 10.1111/j.1740-8261.2009.01540.x.
The purpose of this paper is to characterize the sonographic and radiographic features of hemipenes in male snakes and to use these features for gender determination. The sonographic and radiographic examination of 17 male and 10 female snakes, whose gender was determined previously by probing, were evaluated by one examiner who was unaware of the gender. Sonographically, hemipenes appeared funnel shaped with an echogenic thin wall and hypo to anechoic contents. Radiographically, hemipenes filled by positive contrast medium appeared as funnel-shaped radiopacities pointing caudally. Snake gender was correctly determined in all snakes using sonography (accuracy = 100%). Radiographic accuracy was 81.4%. Interpretation of radiographic examinations was limited by poor distribution of the contrast medium within the hemipenes.
本文的目的是描述雄性蛇类半阴茎的超声和放射学特征，并利用这些特征进行性别鉴定。对17条雄性蛇和10条雌性蛇进行了超声和放射学检查，这些蛇的性别先前已通过探针法确定，由一名不知其性别的检查者进行评估。在超声检查中，半阴茎呈漏斗状，壁薄且回声增强，内容物呈低回声至无回声。在放射学检查中，充满阳性造影剂的半阴茎表现为指向尾部的漏斗状不透射线区。使用超声检查可正确鉴定所有蛇的性别（准确率 = 100%）。放射学检查的准确率为81.4%。造影剂在半阴茎内分布不佳限制了放射学检查的解读。
