Min Hoan Moon

Evaluation of the epididymis and measurement of testicular volume with scrotal US are important in distinguishing obstructive azoospermia from nonobstructive azoospermia in infertile men.

OBJECTIVES: The aim of this study was to provide reference values for nasal bone length (NBL) scanned at 11-14 weeks' gestation in the Korean population and compare these values with those of the Caucasian and African-American populations. METHODS: From April 2004 to July 2004, fetal NBLs were measured in well-dated, non-anomalous fetuses at 11-14 weeks' gestation in the Korean population. Regression analysis was used to assess the relationship between NBL and crown-rump length (CRL), and refere

OBJECTIVE: To investigate the in-utero development of the fetal anal sphincter using transabdominal ultrasound. METHODS: This was a cross-sectional study in which the diameter of the fetal anal sphincter was measured sonographically once in 631 well-dated, non-anomalous fetuses scanned between 19 and 38 weeks of gestation. Visualization rates were determined. Regression analysis was used to assess the relationship between the diameter of the fetal anal sphincter and gestational age (GA), and ref

Thickened pedicles with ancillary findings including a whirl sign, a navel sign, and uterine deviation facing thickened pedicles could be helpful for the diagnosis of adnexal torsion.

Sonographic findings of ovarian GCTs included solid and cystic masses, solid masses with a sponge form appearance, and entirely solid masses, and the sonographic findings correlated well with the histopathologic findings.

We have provided reference values for the fetal gall bladder throughout the gestation period in the Korean population.

OBJECTIVES: The purpose of our study is to provide reference values for the great vessels obtained from images of the three-vessel view of the fetal heart, with an emphasis on the size discrepancy of the great vessels. METHODS: From February 2003 to May 2003, the main pulmonary artery (MPA), ascending aorta (AA), and SVC were measured in well-dated, nonanomalous fetuses scanned at 14-38 weeks of gestation. RESULTS: The size of each great vessel had a significant positive relationship with advanc

OBJECTIVE: To assess the accuracy of transvaginal ultrasound (US) in the prediction of the chorionicity of diamniotic twin pregnancies with a single placental mass at 11 to 14 weeks of gestation. METHOD: From June 2006 to April 2007, we determined chorionicities by depiction of the amnion and chorion at the membrane-to-placental interface using transvaginal US. Pregnancies were classified as monochorionic when two layers of the amnion were identified as dichorionic when either one layer of the c

3D US-based virtual cystoscopy may have diagnostic potential in the detection of polypoid bladder tumors.

OBJECTIVE: The purpose of this study was to determine the outcome predictors of intramuscular methotrexate therapy for tubal pregnancy. METHODS: This retrospective study was approved by our Institutional Review Board. Fifty-five consecutive women (mean age, 31 years; range, 18-45 years) who were treated with intramuscular methotrexate therapy for tubal pregnancy were retrospectively reviewed. Clinical data (maternal age, gestational age, and serum beta-human chorionic gonadotropin [beta-hCG] lev