Ultrasonography, with its various techniques (grey-scale, color Doppler, sonoelastography) offers many signs for the differentiation between benign and malignant neck lymph nodes. In spite of recent progress, the US appearance may be misleading. We present three cases in which the ultrasonographic appearance of the lymph nodes was misleading as compared to the final diagnosis established by his...

OBJECTIVE: To evaluate the interobserver reproducibility of vascular indices obtained with three-dimensional power Doppler (3D power Doppler) ultrasonography at the first trimester of gestation. MATERIALS AND METHODS: The present reproducibility study involved 32 healthy pregnant women with 7 to 10 weeks and 6 days of gestation. The VOCAL (Virtual Organ Computer-aided AnaLysis) method was utili...

PURPOSE To investigate the role of the resistive index measured with transvaginal color Doppler ultrasonography (TVCDUS) for assessing the radiotherapy response of cervical carcinoma and to compare it with magnetic resonance findings. MATERIALS AND METHODS A total of 13 patients with advanced stage cervical carcinoma (>IIA) underwent magnetic resonance imaging (MRI) and TVCDUS exams 6 months ...

Renal arteriovenous malformations are abnormal communications between the intrarenal arterial and venous systems. They are a rare cause of hematuria. Color Doppler ultrasonography, multislice CT angiography, and DSA are important tools for making the diagnosis. We describe the case of a 62-year-old man with renal arteriovenous malformation who presented with gross hematuria.

inus pericranii is a rare abnormality that may appear as a midline nasofrontal mass.1,2 This disorder consists of congenital or acquired anomalous connections between an extracranial blood-filled nodule and the intracranial dural sinuses through dilated diploic and emissary veins of the skull.3 We report a case of sinus pericranii and present the findings on color Doppler ultrasonography (CDUS).

OBJECTIVE We describe an operative technique for Chiari Type I malformation that uses color Doppler ultrasonography as a guide for performing patient-specific posterior fossa decompressions. The technique has been used since 1999 in more than 300 operations. METHODS On the basis of real-time anatomic and physiological measurements, the following goals of surgery were monitored: 1) adequate de...

To compare and determine color Doppler ultrasonography (CDU) parameters that is the most reliable parameter for predicting thyroid functional status between euthyroid and hyperthyroid states. We retrospectively reviewed data from a total of 256 patients (197 females and 59 males) who had undergone CDU from December 2003 to April 2008. Patients’ age ranged from 11-81 yr with average of 38.6 yr. ...

PURPOSE To determine the value of color Doppler ultrasonography (CDUS) as a routine investigational method for diagnosis of scrotal pathologies. MATERIALS AND METHODS This prospective observational study (case series) was carried out over a period of 16 months on 122 patients in the age range of 13 to 70 years old, who presented with scrotal swellings. After adequate history taking and examin...

We intended to compare gray-scale vs. color Doppler ultrasound findings in cold thyroid nodules. Sixty-four patients with cold thyroid nodules for whom the presumptive diagnosis of malignancy (based on isotope scan study) had been made were consecutively included. They underwent gray-scale and color Doppler sonography studies. Based on histopathologic examination of surgically removed nodules, ...