Measurements and Main Results: In the GIS group (n 5 53) 35 abnormalities were found; 31 (89%) were confirmed during hysteroscopy. In the SIS group (n 5 50) 30 abnormalities were found; 22 (73%) were confirmed during hysteroscopy. Suspected pedunculated polyps were confirmed during hysteroscopy in all 8 cases, sessile polyps in 15 out of 19 cases, pedunculated myomas (type 0) in 10 out of 14, sessile myomas (type 1) in 9 out of 13 and sessile myomas (type 2) in all 11 cases. Conclusion: Gel Instillation is an alternative for Saline Infusion during Sonohysterography. Gel Instillation has a higher diagnostic accuracy than Saline Infusion during Sonohysterography. 26 Open Communications 1dUltrasound/Imaging Techniques (12:17 PM d 12:22 PM) Automated Sonographic Tubal Patency Evaluation Using Three- Dimensional Coded Contrast Imaging: Feasibility and Accuracy Exacoustos C, 1 Di Giovanni A, 1 Szabolcs B, 1 Romanini ME, 1 Reisinger H Binder, 2 Gabardi C, 2 Zupi E, 1 Arduini D. 1 1 Department of Obstetrics and Gynecology, Universita`degli Studi di Roma‘‘Tor Vergata’’ Rome, Italy; 2 GE Healthcare, Zipf, Austria Study Objective: To evaluate the feasibility of a new automated three dimensional contrast-enhanced ultrasound technology called ‘‘Coded Contrast Imaging’’ (3D CCI) (GE Healthcare) in the evaluation of tubal patency and visualization of tubal course. Design: Patients undergoing transvaginal hystero-salpingo-contrast-sono- graphy (TVS HyCoSy) with automated 3D CCI were prospectively evaluated. Setting: Obstetrics and Gynecology Department, Universita ` degli Studi di Roma ‘‘Tor Vergata’’. Patients: Fifty-two patients of reproductive age underwent automated 3D CCI HyCoSy. Intervention: The CCI allows the detection of an ultrasound contrast agent in the tube by discriminating the harmonic response of contrast bubbles from the echoes of other tissues. 3D TVS allows the visualization of tubal course. To evaluate the feasibility of this method we considered first tubal patency and the 3D visualization of tubal course after two consecutive contrast agent injections. The visualization with CCI of the contrast agent around the ovaries, the need for more than one fluid injection to assess tubal patency, the detection in 2D real time of the bubbles movement around the ovaries, and the side effects and pain during and after the procedure were assessed. Measurements and Main Results: 40 women had bilateral tubal patency and 12 had tubal occlusion (4 cases bilateral, 8 unilateral). The 3D tubal course automated reconstruction was achieved in 33 cases (63%) after the first contrast injection, while in 12 cases (23%) further injection was needed. 2D real time evaluation was performed in all cases to confirm tubal status and it was helpful to assess tubal patency in those 7 patients in whom 3D reconstruction wasn’t sensitive enough to achieve a diagnosis. For the 88 patent tubes, in 86 cases CCI clearly showed the contrast agent around the ipsi-lateral ovary. Conclusion: Automated 3D-CCI HyCoSy allows for a reliable assessment of tubal patency in 86% of cases. Automated 3D volume acquisition allows less experienced operators to easily evaluate the tubal course. 27 Open Communications 1dUltrasound/Imaging Techniques (12:23 PM d 12:28 PM) Intrauterine Ultrasound: A New Imaging Modality for Intramyometrial Pathology Lyons E, 1 Goldstein S, 2 Tirabassi M, 3 Munrow M, 4 Toub D. 4 1 The University of Manitoba and Health Sciences Centre, Winnipeg, MB, Canada; 2 Obstetrics and Gynecology, New York University School of Medicine, New York, NY; 3 The Cleveland Clinic, Cleveland, OH; 4 Gynesonics, Inc., Redwood City, CA Study Objective: To evaluate the utility of a minimally invasive, high- resolution ultrasound probe that is introduced transcervically for intrauterine imaging of myometrial pathology. Design: Prospective, nonrandomized study. Setting: Academic medical center. Patients: 23 women undergoing hysterectomy for abnormal uterine bleeding. Intervention: Transvaginal sonography (TV U/S) and intrauterine ultrasound (IUUS) were performed immediately prior to total abdominal hysterectomy as part of a clinical development protocol for a device undergoing investigation as a treatment for fibroids. The uteri were found on sonography and histopathology to have leiomyomata, adenomyosis or both. Imaging results were compared with regard to the qualitative diagnosis of intramyometrial pathology. Measurements and Main Results: 23 subjects underwent both TV U/S and IUUS. No fibroids were missed on IUUS imaging. In two patients, small fibroids were detected on intrauterine imaging that were not evident on TV U/S. As with previous cohorts, IUUS also increased the suspicion of adenomyosis in 1 of 3 subjects with hysterectomy-proven adenomyosis. Conclusion: Intrauterine sonography is a promising modality that can be performed by gynecologists during transvaginal procedures and can provide high-resolution imaging of fibroids, adenomyosis and other intrauterine pathology. 28 Open Communications 1dUltrasound/Imaging Techniques (12:29 PM d 12:34 PM) Using Transvaginal Sonography with Color Doppler Imaging for the Diagnosis of Endometrial Polyps Chang PL, 1 Kamaya A, 2 Desser TS, 2 Chen B. 1 1 Obstetrics and Gynecology, Stanford University, Stanford, CA; 2 Radiology, Stanford University, Stanford, CA Study Objective: To investigate the effectiveness of transvaginal sonography with color Doppler imaging for the diagnosis of endometrial polyps. Design: Retrospective case study of seventy-four patients with transvaginal sonography showing evidence of endometrial polyps, which were confirmed by a diagnostic or operative hysteroscopy. Polyps were suspected on sonography because of endometrial vascularity, identification of a feeding vessel, or because of a focal abnormality identified on grayscale imaging. Setting: Large teaching institution; Stanford University Medical Center. Patients: All transvaginal pelvic sonograms performed in the radiology department from May 2000 to May 2008 with the keyword ‘‘polyp’’ were identified. This was followed by electronic chart review of all the patients with suspected endometrial polyps. There were 195 patients with a diagnosis of endometrial polyp on transvaginal sonography. Ninty-five patients had clinical information in the electronic database. Of these 95 S8 Abstracts / Journal of Minimally Invasive Gynecology 16 (2009) S1eS51