Fusion imaging in preoperative assessment of extent of disease in patients with advanced ovarian cancer: feasibility and agreement with laparoscopic findings.

OBJECTIVES: Fusion imaging is an emerging technique that combines real-time ultrasound examination with images acquired previously using other modalities, such as computed tomography (CT), magnetic resonance imaging and positron emission tomography. The primary aim of this study was to evaluate the feasibility of fusion imaging in patients with suspicion of ovarian or peritoneal cancer. Secondary aims were: to compare the agreement of findings on fusion imaging, CT alone and ultrasound imaging alone with laparoscopic findings, in the assessment of extent of intra-abdominal disease; and to evaluate the time required for the fusion imaging technique. METHODS: Patients with clinical and/or radiographic suspicion of advanced ovarian or peritoneal cancer who were candidates for surgery were enrolled prospectively between December 2019 and September 2020. All patients underwent a CT scan and ultrasound and fusion imaging to evaluate the presence or absence of the following abdominal-cancer features according to the laparoscopy-based scoring model (predictive index value (PIV)): supracolic omental disease, visceral carcinomatosis on the liver, lesser omental carcinomatosis and/or visceral carcinomatosis on the lesser curvature of the stomach and/or spleen, involvement of the paracolic gutter(s) and/or anterior abdominal wall, involvement of the diaphragm and visceral carcinomatosis on the small and/or large bowel (regardless of rectosigmoid involvement). The feasibility of the fusion examination in these patients was evaluated. Agreement of each imaging method (ultrasound, CT and fusion imaging) with laparoscopy (considered as reference standard) was calculated using Cohen's kappa coefficient. RESULTS: Fifty-two patients were enrolled into the study. Fusion imaging was feasible in 51 (98%) of these patients (in one patient, it was not possible for technical reasons). Two patients were excluded because laparoscopy was not performed, leaving 49 women in the final analysis. Kappa values for CT, ultrasound and fusion imaging, using laparoscopy as the reference standard, in assessing the PIV parameters were, respectively: 0.781, 0.845 and 0.896 for the great omentum; 0.329, 0.608 and 0.847 for the liver surface; 0.472, 0.549 and 0.756 for the lesser omentum and/or stomach and/or spleen; 0.385, 0.588 and 0.795 for the paracolic gutter(s) and/or anterior abdominal wall; 0.385, 0.497 and 0.657 for the diaphragm; and 0.336, 0.410 and 0.469 for the bowel. The median time needed to perform the fusion examination was 20 (range, 10-40) min. CONCLUSION: Fusion of CT images and real-time ultrasound imaging is feasible in patients with suspicion of ovarian or peritoneal cancer and improves the agreement with surgical findings when compared with ultrasound or CT scan alone. © 2021 International Society of Ultrasound in Obstetrics and Gynecology.

Urodynamic evaluation and anorectal manometry pre- and post-operative bowel shaving surgical procedure for posterior deep infiltrating endometriosis: a pilot study.

STUDY OBJECTIVE: To analyze bowel and urinary function in patients with posterior deep infiltrating endometriosis (DIE) >30 mm in largest diameter at transvaginal ultrasound before and after surgical nerve-sparing excision. DESIGN: Prospective observational study (Canadian Task Force classification III). SETTING: Tertiary care university hospital in Bologna, Italy. PATIENTS: Twenty-five patients with posterior DIE were included in the study between June 2011 and December 2012. Patients did not receive hormone therapy for at least 3 months before and 6 months after surgery. INTERVENTIONS: Patients underwent urodynamic studies and anorectal manometry before and after nerve-sparing laparoscopic excision of the posterior DIE nodule. MEASUREMENTS AND MAIN RESULTS: Intestinal and urinary function was evaluated in patients with bulky posterior DIE using urodynamic and anorectal manometry. Results of urodynamic studies and anorectal manometry were similar before and after nerve-sparing surgical excision of the posterior DIE nodule. Urodynamic studies demonstrated a high prevalence of voiding dysfunction, whereas anorectal manometry showed no reduction in rectoanal inhibitory reflex and hypertone of the internal anal sphincter. CONCLUSIONS: Patients with posterior DIE >30 mm in greatest diameter demonstrate preoperative dysfunction at urodynamic study and anorectal manometry, probably due to DIE per se. The nerve-sparing surgical approach seems not to influence the motility or sensory capacity of the bladder and the rectosigmoid colon.

Laparoscopic management of early stage ovarian cancer: is it feasible, safe, and adequate? A retrospective study.

INTRODUCTION: Minimally invasive surgery to stage early ovarian cancer is still regarded as pioneering among gynecologic oncologists. Previous retrospective experiences demonstrated the safety and feasibility of laparoscopy in this field. AIMS: To review the laparoscopic staging procedure in a series of patients with early ovarian cancer and compare results with the literature. MATERIALS AND METHODS: From January 2004 to September 2011, 19 patients with apparent early stage ovarian/fallopian tube cancer Stage IA to IC underwent either primary treatment or completion staging by laparoscopy. Surgical, pathologic, and oncologic outcomes were analyzed. RESULTS: The mean operative time was 212 +/- 69 minutes. Three patients (16%) underwent fertility sparing surgery. The mean estimated blood loss was two +/- two g/dl. The mean number of pelvic and para-aortic lymph nodes collected was 17 (range 7-27) and 14 (range 8-21), respectively. The mean volume of ovarian/tubal tumor was 119 cm3 (range 1.5-500). The disease was reclassified to a higher stage in ten women (52%). One major intraoperative complication (five percent) occurred which required the conversion to laparotomy. The mean follow up period was 30 +/- 16 months (range 10-74). Overall survival and disease-free survival were 100% and 84%, respectively. CONCLUSIONS: Laparoscopic staging of early ovarian cancer appears to be feasible and comprehensive when performed by gynecologic oncologists experienced with advanced laparoscopy.