Objective: We evaluated and compared the diagnostic potential of computed tomography (CT) and herniography in the identification of inguinal hernias. Summary of Background Data: Herniography is typically utilized in the diagnosis of inguinal hernias in our institute. We have utilized transabdominal preperitoneal repair (TAPP) in the treatment inguinal hernias since October 2010 and have performed a laparoscopic diagnosis followed by single-incision laparoscopic surgery for totally extraperitoneal repair (SILS-TEP) since November 2013. We herein evaluated and compared the diagnostic potential of CT and herniography. Methods: From February 2012 to March 2016, 46 patients (Male/Female: 43/3, median age: 70 years) with 63 inguinal hernias were investigated using CT and herniography. We classified each inguinal hernia according to the Japan Hernia Society (JHS) classification using CT (prone position) and herniography and evaluated the accuracy of each of the diagnostic methods. Results: Twenty-nine patients had unilateral hernias and seventeen had bilateral hernias. Sixty-two percent (39/63) and 84% (53/63) of the inguinal hernias were correctly diagnosed and classified by CT and herniography, respectively. Eighty-seven percent (55/63) and ninety-eight percent (62/63) of the inguinal hernias were detected by CT and herniography, respectively. Thus, herniography was found to be more sensitive than CT and the difference in the detectability of inguinal hernias by the two methods was statistically significant. Conclusions: Herniography appears to be superior to CT, for both the classification and detection of inguinal hernias.

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