Sonographic appearance of the epididymis in pediatric testicular torsion.

Objective: The purpose of this study was to determine the frequency of an enlarged epididymis in pediatric patients with testicular torsion and to determine whether an altered epididymis might be a helpful ancillary sonographic sign of testicular torsion.

Materials And Methods: The sonograms of 50 pediatric patients (age range, neonate-17 years) with testicular torsion were retrospectively reviewed for the size, appearance, and blood flow of the epididymis. Medical records were reviewed for surgical and pathologic findings and to determine whether testicular salvage had been possible.

Color Doppler sonography and scintigraphy of the testis: a prospective, comparative analysis in children with acute scrotal pain.

Objective: To compare testicular color Doppler sonography with testicular scintigraphy in differentiating between surgical and nonsurgical conditions of the pediatric testis, and to evaluate the role of testicular color Doppler sonography in the pediatric population.

Materials And Methods: Forty-six children (age range, 1 day to 18 years; median age, 11 years) with acute scrotal pain were evaluated with both scintigraphy and color Doppler sonography by two separate groups of radiologists who had no knowledge of the results of the other modality. The final radiologic diagnosis was classified as a surgical condition, nonsurgical condition, or indeterminate and was compared with the patient's surgical diagnosis or clinical diagnosis, which was established by response to treatment and follow-up.

Acute pyelonephritis: comparison of diagnosis with 99mTc-DMSA, SPECT, spiral CT, MR imaging, and power Doppler US in an experimental pig model.

Purpose: To compare the sensitivity and specificity of technetium-99m dimercaptosuccinic acid (DMSA) single photon emission computed tomography (SPECT), spiral computed tomography (CT), magnetic resonance (MR) imaging, and power Doppler ultrasonography (US) for the detection and localization of acute pyelonephritis by using histopathologic findings as the standard of reference.

Materials And Methods: Bilateral vesicoureteric reflux was surgically created in 35 piglets (70 kidneys). One week later, a liquid bacterial culture of Escherichia coli was injected into the bladder.

Prevalence of Müllerian duct anomalies detected at ultrasound.

The true prevalence of müllerian duct abnormalities is not well established. We used standard ultrasound examinations to establish the prevalence of müllerian duct abnormalities in girls and women who were evaluated for reasons unrelated to the presence of uterine anomalies. Prospective ultrasound examinations for nonobstetric indications in 2,065 consecutive girls and women (aged 8-93) showed that 8 had anomalies, including bicornuate uterus, septate uterus, and double uterus.

Sonographic detection of uterine and ovarian abnormalities in female survivors of Wilms' tumor treated with radiotherapy.

Objective: The purpose of this study was to use sonography to evaluate the size of the ovaries and uterus in survivors of Wilms' tumor who underwent radiotherapy.

Subjects And Methods: Eighteen survivors of Wilms' tumor had their ovaries and uterus measured on sonography. Their ages at diagnosis and treatment ranged from 14 months to 6 years.

Colonic diverticulitis causing partial bowel obstruction in a child with cystic fibrosis.

Children and adolescents with cystic fibrosis (CF) may manifest bowel pathology with resulting bowel obstruction. Recognized causes of bowel obstruction in CF patients include meconium ileus, intussusception, distal intestinal obstruction syndrome and postoperative adhesions. Additionally, the development of colonic strictures in children with CF has recently been described.

Perinatal and postnatal chest sonography.

Sonography is the primary method used to image the fetal chest. Many significant congenital anomalies such as pleural effusion, congenital diaphragmatic hernia, cystic adenomatoid malformation, pulmonary sequestration, and congenital heart disease can be detected during early prenatal sonography. Fetal sonography also permits accurate assessment of the severity of these processes, allowing for parental counseling and optimal planning of postnatal care.

Appendicitis: usefulness of US in diagnosis in a pediatric population.

One hundred eighty pediatric patients with suspected appendicitis were prospectively examined with graded compression ultrasonography (US) to assess the sensitivity, specificity, and accuracy of graded compression US in the diagnosis of appendicitis in children and to compare those results with results of clinical assessment in the diagnosis of this disorder. Patients were assigned to one of three groups prior to US based on the clinical level of confidence that appendicitis was present and on the planned management decision. Of 141 patients in the low- and intermediate-clinical risk categories, 20 (14%) had appendicitis: US had a sensitivity of 100%, specificity of 97%, and accuracy of 97% in these two groups.