نتایج جستجو برای: gray scale ultrasonography
تعداد نتایج: 654976 فیلتر نتایج به سال:
A technique using commercially available B-mode gray scale ultrasonography for imaging the head in the newborn and young infant is described. Serial scans were performed at several angles from the canthomeatal line. Images of technical quality previously unobtainable are shown. Normal anatomic structures such as ventricles, cerebral peduncles, pons, cerebellum, sulci, gyri, choroid plexus, faix...
background: to evaluate the efficacy of color doppler ultrasound (cdus) in differentiating benign and malignant cervical lymph nodes by detecting differences in blood flow patterns. materials and methods: in this cross‑sectional prospective study, 25 untreated patients with clinical evidence of cervical lymphadenopathy were evaluated. cdus was performed for 80 cervical lymph nodes. the gray sca...
conclusion gray scale sonography in combination with doppler sonography could be a trustworthy technique in differentiating metastatic lymph nodes from reactive ones. although, circulation pattern had a higher diagnostic accuracy in the present study, combination of sonographic characteristics could be more beneficial in differentiating metastatic cervical nodes from reactive ones. results the ...
Acoustic contrast enhancement: value of several system gain variations in gray scale ultrasonography
BACKGROUND It is of high incidence of brain injuries in premature infants, so it is necessary to diagnose and treat the brain injury early for neonatal clinical practice. We are aimed to investigate the relationship between early postnatal cranial ultrasonography and psychomotor and mental development in prematrue infants at the age of 12 months. METHODS Two-hundred and eight premature infant...
The place of CEUS in distinguishing benign from malignant cervical lymph nodes: a prospective study.
AIMS The aim of the study was to evaluate the ability of contrast-enhanced ultrasonography (CEUS) compared to gray-scale B-mode and color Doppler ultrasound in differentiate benign versus malign superficial cervical lymph nodes. MATERIAL AND METHODS In a prospective study ultrasonography (gray scale, color and spectral Dopller, and CEUS) was performed in 61 patients (33 men, 28 women; mean ag...
Jugular vein aneurysms are rare vascular abnormalities that are most commonly encountered in the pediatric population. We report two separate cases in infants, both of whom presented with enlarging neck masses and were found to have jugular vein aneurysms. Diagnosis was established with duplex ultrasonography, computed tomography angiography, digitally subtracted catheter venography, and magnet...
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