A New Dynamic Echodefecography (EDF) Established by Using BK Ultrasound 8838 Transducer and its Testing Results Comparison with X-ray Defecography

Objective To describe a new dynamic echodefecography(EDF) using BK ultrasound 8838 transducer and compare its testing results with X-ray defecography. Method The BK 8838 ultrasound probe is used to evaluate the static 3D scan, dynamic 3D scan and dynamic 2D scan of pelvic floor and compare its testing results with X-ray defecography and defined its value to evaluate the pelvic floor disease. Results Fifty-seven patients were studied (24 male and 33 female). Forty seven patients were diagnosed as anismus by EDF and 46 patients were diagnosed as anismus by X-ray defecography. Sixteen patients were diagnosed as rectocele by X-ray defecography, among which eight were classified as mild(6-15mm), 4 as moderate(16-30mm) and 4 as severe(over 30mm).Fourteen patients with constipation and 2 patients with anal pain were diagnosed as intussusception by EDF, but only 3 patients were diagnosed as intussusception by X-ray defecography. Two patients with constipation were diagnosed as perineal descent by EDF and none by X-ray defecography. Two patients were diagnosed as enterocele by EDF as well as X-ray defecography. Conclusion The EDF established by BK 8838 ultrasound probe can show clear anatomy and real time movement of pelvic floor muscle. The EDF is more sensitive to the diagnosis of intussusception, perineal descent(PD) and anal spincter defect than X-ray defecograpgy. For anismus,rectocele and enterocele,the diagnosis results are comparable between EDF and X ray defecography. Further study is needed to determine its clinical values to evaluate the pelvic disease.