Conclusions: Smaller SD values are thought to represent normal or FL,and larger SD values reflect the possibility of CLD that shows coarse echo.Therefore, it is concluded that the SD can be used as a useful quantitativevalue that can determine the coarseness of chronic liver disease.

3618

Analysis of contrast intensity in the liver specific late phase ofenhanced sonography with LevovistTamai H, Oka M, Shingaki N, Shiraki T, Enomoto S, Inoue I,Magari H, Iguchi M, Yanaoka K, Kenji Arii K, Shimizu Y, IchinoseM, Second Department of Internal Medicine, Wakayama MedicalUniversity, Japan

Objectives: Levovist is a galactose-based contrast medium that accu-mulates in the liver parenchyma in the late phase and is thought to bephagocytized by Kupffer cells. The purpose of this study was to assessthe correlation between various liver conditions and the contrast inten-sity seen in the late phase of Levovist-enhanced sonography.Methods: Ultrasound equipment used for the analysis was SONOLINEElegra (Simens). Contrast intensity of microbubbles subtracted fromtissue intensity in the liver parenchyma is measured by NIH imagesoftware in 59 patients with liver tumor. The transmission frequency is2.8 MHz, and phase inversion contrast harmonic gray scale B modewas used. Ultrasound images in late phase were obtained in 5 min afterthe intravenous infusion of 2.5 g Levovist. Focus was always adjusted4 to 6 cm in depth from the body surface as the maximal mechanicalindex was 1.9, and the region of interest was set on the left lobe in thelongitudinal section of upper abdomen.Results: Platelet count, type IV collagen 7S, prothrombin time, albu-min, bilirubin, Child-Pugh score and ICG value (%) were significantlycorrelated with contrast intensity of the microbubbles.Conclusions: The contrast intensity of Levovist in the liver-specificlate phase reflects liver function and the severity of liver fibrosis.

3619

Ultrasound of shoulder instability: Correlation withultrasonography and MR and US arthrographyJeong WK, Armed Forces Capital Hospital, Korea

The ultrasonography to diagnose rotator cuff injuries is well known, butthat for the abnormalities of glenoid labrum is performed relatively alittle. It may be the reason that (1) adjacent bony structures (coracoidprocess, acromion and humeral head) interfere with the sonic window,(2) the joint is located relatively deeply to use high-frequency trans-ducer and (3) because of variable ultrasound artifacts it is difficult thatsmall labral abnormality is revealed. However, ultrasonography is aninexpensive, dynamic, fast and easily accessible method. We performconventional US and tissue harmonic imaging to the patients of shoul-der instability, and perform direct MR arthrography after diluted gad-olinium injection, and then examine the shoulder by ultrasonographyagain to compare between nondilated and dilated joint. This subject ispurposed to know that ultrasound can depict the presence of Hill-Sachsand Bankart lesion and the extent of lesion and substitute MR forpreoperative evaluation.

3620

Imaging spectrum of high risk lesions diagnosed on US-guidedbiopsy and management planYang HR, Kim HH, Shin HJ, Kim SM, Sohn J-H, University ofUlsan, College of Medicine, Asan Medical Center, Korea; SeoulNational University Bundang Hospital, Korea

The purpose of this exhibit is to illustrate the imaging spectrum of thehigh risk lesions diagnosed on sonography-guided biopsy and to sug-

gest the further management plan of these lesions. High risk breastlesions are ductal and lobular proliferations that have either a statisticalassociation with increased risk of subsequent breast cancer, or geneticalterations or mutations similar to those present in ductal carcinoma insitu or infiltrating carcinoma of the breast. Papillary lesions, radialscars, lobular neoplasia and proliferative lesion with atypia are infre-quent histologic entities found at sonography-guided biopsy. The man-agement of these lesions after a sonography-guided biopsy has not beenwell established. This exhibit could help us to learn about whetherimaging findings of high risk lesions found at US-guided biopsy areradiologic-pathologic concordance or discordance and to learn aboutmanagement plan of these lesions.

3621

Ultrasound of groin masses in women: Inguinal anatomy andpathologic conditionJung SE, Oh SN, Lee YJ, St. Mary’s Hospital, The CatholicUniversity of Korea, Korea; Kangnam St. Mary’s Hospital, TheCatholic University of Korea, Korea

Because female groin masses are rare and complex of the anatomy andembryology, these do not arouse radiologist’s interest. However, ultra-sound is best modality of choice in patient presenting palpable groinmass. Various types of hernia and reactive or metastatic lymphadenop-athy are common and various unusual diseases can be affected in thisarea, such as round ligament cyst and varices, wall mass (desmoidtumor and endometriosis), hematoma, pseudoaneurysm, infection andasymmetric prominent fat tissue. Color Doppler ultrasound is useful indiagnosing the vascular mass. The quality of the ultrasound depends onexperience and knowledge of the operator. It is mandatory to have aworking knowledge of the anatomy and embryology of the groin areafor localization and characterization of the masses in this complex area.We will describe the anatomy and embryology of groin area in womenand discuss the differential point of uncommon diseases from commonlesions.

3622

The relationship between cervical length and ultrasoundelastogram of the uterine cervix in pregnant womenYamaguchi S, Kamei Y, Kozuma S, Hanada N, Sakamaki K,Horikoshi T, Komatsu A, Iriyama T, Enari T, Miyachi K, Taketani Y,The University of Tokyo, Japan

Sonographic measurement of cervical length is considered to be themost reliable method to identify high risk patients for preterm delivery.It is, however, desirable to improve its diagnostic accuracy and de-crease the incidence of treatment for preventing preterm delivery. Weperformed cervical transvaginal ultrasound examinations in 25 preg-nant women to obtain cervical length and tissue elasticity images. Wedivided an elastography image of the anterior lip of uterine cervix intofive zones: upper, middle (outer, inner and their border) and lowerzones, and compared their colors with the color of the middle outerzone to evaluate tissue stiffness of the uterine cervix. The stiffness inthe upper and lower zones had significant relationship with cervicallength, but there was no relationship in the border area of the middlezones. A cervical ultrasound examination with elastography might giveadditional information for identifying high risk patients for pretermdelivery.

3623

Low-intensity ultrasound (LIUS) preconditioned mesenchymalstem cells (MSCs) improves healing of articular cartilage defectCui JH, Park SR, Min B-H, Ajou University School of Medicine,Korea; Inha University, College of Medicine, Korea

Abstracts P297