TY - JOUR
T1 - La defecografia con tomografia computerizzata spirale
AU - Ferrando, Raffaella
AU - Fiorini, Gloria
AU - Beghello, Angela
AU - Tornago, Stefano
AU - Cicio, GianRosario
AU - Derchi, Lorenzo E.
AU - Consigliere, Maddalena
AU - Resasco, Mario
PY - 1999/11
Y1 - 1999/11
N2 - Purpose. We investigated the possible role of Helical CT defecography in pelvic floor disorders by comparing our results with those of conventional defecography. Material and methods. Our series consisted of 90 patients, namely 62 women and 28 men, ranging in age 24-82 years. They were all submitted to conventional defecography, and 18 questionable cases were also studied with Helical CT defecography. The conventional examination was performed during the 4 standard phases of resting, squeezing, Valsalva and straining; we used a remote-control unit. The parameters for Helical CT defecography were: 5 mm beam collimation, pitch 2, 120 KV, 250 mAs and 18-20 degrees gantry inclination to acquire coronal images of the pelvic floor. The rectal ampulla was distended with a bolus of 300 mL nonionic iodinated contrast agent (dilution: 3 g/cc). The patient wore a napkin and was seated on the table, except for those who could not hold the position and were thus examined supine. Twenty-second helical scans were performed at rest and during evacuation; multiplanar reconstructions were obtained especially on the sagittal plane for comparison with conventional defecographic images. Results. An unquestionable diagnosis could be made in all the 18 patients submitted to Helical CT defecography. The diagnosis was in agreement with proctology results and added new information in all cases. Sixteen patients had constipation and 2 fecal incontinence - one from rectal prolapse and the other from a rectovaginal fistula. In this latter case Helical CT defecography permitted to confirm the fistula and suggest its course. One patient had a previously undetected ovarian cancer metastatic to the anterior rectal wall. Discussion and conclusions. Coronal Helical CT defecography images permitted to map the perineal floor muscles, while sagittal reconstructions provided information on the ampulla and the levator ani. To conclude, Helical CT defecography performed well in the study of pelvic floor disorders and can follow conventional defecography especially in questionable cases.
AB - Purpose. We investigated the possible role of Helical CT defecography in pelvic floor disorders by comparing our results with those of conventional defecography. Material and methods. Our series consisted of 90 patients, namely 62 women and 28 men, ranging in age 24-82 years. They were all submitted to conventional defecography, and 18 questionable cases were also studied with Helical CT defecography. The conventional examination was performed during the 4 standard phases of resting, squeezing, Valsalva and straining; we used a remote-control unit. The parameters for Helical CT defecography were: 5 mm beam collimation, pitch 2, 120 KV, 250 mAs and 18-20 degrees gantry inclination to acquire coronal images of the pelvic floor. The rectal ampulla was distended with a bolus of 300 mL nonionic iodinated contrast agent (dilution: 3 g/cc). The patient wore a napkin and was seated on the table, except for those who could not hold the position and were thus examined supine. Twenty-second helical scans were performed at rest and during evacuation; multiplanar reconstructions were obtained especially on the sagittal plane for comparison with conventional defecographic images. Results. An unquestionable diagnosis could be made in all the 18 patients submitted to Helical CT defecography. The diagnosis was in agreement with proctology results and added new information in all cases. Sixteen patients had constipation and 2 fecal incontinence - one from rectal prolapse and the other from a rectovaginal fistula. In this latter case Helical CT defecography permitted to confirm the fistula and suggest its course. One patient had a previously undetected ovarian cancer metastatic to the anterior rectal wall. Discussion and conclusions. Coronal Helical CT defecography images permitted to map the perineal floor muscles, while sagittal reconstructions provided information on the ampulla and the levator ani. To conclude, Helical CT defecography performed well in the study of pelvic floor disorders and can follow conventional defecography especially in questionable cases.
KW - Rectal disorders, Helical CT defecography
KW - Rectum, defecography
KW - Rectum, disorders
UR - http://www.scopus.com/inward/record.url?scp=0033223648&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0033223648&partnerID=8YFLogxK
M3 - Articolo
C2 - 10780217
AN - SCOPUS:0033223648
VL - 98
SP - 368
EP - 372
JO - Radiologia Medica
JF - Radiologia Medica
SN - 0033-8362
IS - 5
ER -