The placenta is the vital support organ for the developing fetus. This article reviews current ultrasound (US) methods of assessing placental function. The ability of ultrasound to detect placental pathology is discussed. Doppler technology to investigate the fetal, placental, and maternal circulations in both high-risk and uncomplicated pregnancies is discussed and the current literature on th...

We report a case of a small, intratesticular, incidentally identified, nonpalpable Leydig-cell tumor in which preoperative, dynamic, contrast-enhanced MRI was essential in characterizing the lesion as a neoplasm. Sonographic evaluation failed to demonstrate internal color Doppler flow, resulting in a differential diagnosis that included debris-filled cyst. At surgical resection, intraoperative ...

Introduction Adenomatoid tumours of epididymis are common benign tumours whose grey-scale and colour Doppler ultrasound features can be variable. As it is the case for any palpable scrotal mass, accurate diagnosis and exclusion of malignancy is crucial and essential to avoid unnecessary surgeryand anxiety for the patient. Tissue elastography and contrast enhanced ultrasound (CEUS) represent two...

A 15-year-old boy with neurofibromatosis type 1 (NF1) was referred to us for central venous catheter insertion, and on ultrasound of the neck, he was found to have extensive involvement of the brachial plexus due to the nerve sheath tumour. Multiple hypoechogenic lesions resembling the internal jugular vein and internal carotid artery were visualised and could be differentiated from the vessels...

The objective of the study was to evaluate the role of ultrasound in diagnosis of adnexal pathologies. The ultrasound findings were correlated with per-operative & histo-pathological findings. The study was prospective and was carried out between March 2014 to August 2014 at the Department of Radiology, P.D.U. Govt. Medical College and Civil Hospital, Rajkot. Abdominal ultrasound & Doppler stud...

In a large number of biological and environmental applications, ultrasound (US)-powered microand nanomotors have attracted considerable attention. However, their applications in biological settings have been limited due to the incompatibility of metallic motors and the lack of precision guiding. Here, we demonstrate that cellulosic polymer nanobubbles (200-800nm) can be propelled, aligned, acce...

The carotid color Doppler ultrasound is usually the first imaging modality employed for the assessment of patients with cerebrovascular symptoms. The recognition of the distal stenoocclusive flow pattern is key for the detection of spontaneous dissection of the internal carotid and vertebral arteries in young patients who present cerebral ischaemic signs. We present six cases of patients whose ...

Introduction The past few years have seen a vast proliferation in the use of ultrasound to diagnose circulatory disorders. This increasing interest reflects the fact that many tests are non-invasive, reliable, provide bedside answers and do not require large investment of equipment or personnel. Ultrasound systems have been used clinically in two ways. Firstly, ultrasound can provide an anatomi...

Objective: To prospectively assess the diagnostic performance of Doppler ultrasound and grayscale imaging for the discrimination of benign and malignant adnexal masses. Study design: Observational study. Duration: January 2002 to December 2003. Setting: Mother and Child Health (MCH) Center, Unit II, Pakistan Institute of Medical Sciences, Islamabad, Pakistan. Subjects: Patients with an adnexal ...

Advanced ultrasound technology has been a valuable tool in the assessment of placental anatomy and physiology. Con­ ventional two­dimensional (2D) sonography reveals placental morphological characteristics, 2D color Doppler can assess blood flow in the placenta, 2D power Doppler can evaluate placental vascular trees, and three­dimensional (3D) ultra­ sound gives more detailed information on the...