Duplex sonography for carotid artery disease: an accurate technique.

نویسنده

  • D J Blasberg
چکیده

Carotid arteriograms and combined real-time B-mode and Doppler sonograms were evaluated by independent observers of 101 carotid arteries in 51 consecutive patients. The results were correlated . For Duplex detection of hemodynamically significant stenosis, a specificity of 97% was obtained, sensitivity of 94%, and accuracy of 96% . The Duplex examination is an accurate method for evaluating carotid artery disease.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A prospective comparison of duplex sonography vs angiography of the vertebral arteries.

A prospective blind comparison was completed between duplex sonography and angiography of the vertebral arteries. Thirty-two vertebral arteries were studied for direction of flow, degree of origin plaque or stenosis, Doppler characteristics, and vessel size. The vertebral arteries were reliably identified by imaging their course from the subclavian artery into the transverse foramina and by ide...

متن کامل

Common carotid artery occlusion: evaluation with duplex sonography.

PURPOSE To demonstrate the efficacy of carotid duplex ultrasound to diagnose common carotid artery occlusion (CCAO) and to define the clinical features of CCAO. METHODS We reviewed 5400 carotid duplex ultrasonograms obtained over a 7-year period for suspected carotid artery disease. In cases of CCAO, medical records were reviewed. RESULTS Thirteen cases (0.24%) of CCAO were diagnosed by car...

متن کامل

Duplex Doppler sonography of the carotid artery: false-positive results in an artery contralateral to an artery with marked stenosis.

Anecdotal reports have described a false-positive "jet effect" or velocity increase in the carotid artery contralateral to an artery with significant stenosis or occlusion when using duplex Doppler sonography. In this study, the frequency, significance, and possible reasons for this finding were evaluated by a retrospective comparison of duplex sonography and angiography. Twenty-three patients ...

متن کامل

Preoperative evaluation of carotid artery stenosis: comparison of contrast-enhanced MR angiography and duplex sonography with digital subtraction angiography.

BACKGROUND AND PURPOSE Contrast-enhanced MR angiography and extracranial color-coded duplex sonography are noninvasive, preoperative imaging modalities for evaluation of carotid artery stenosis. Innovative techniques and improvements in image quality require frequent reassessment of accuracy, reliability, and diagnostic value compared with those of digital subtraction angiography (DSA). We eval...

متن کامل

Duplex sonography in the evaluation of carotid artery disease.

High-resolution duplex sonography was compared with biplane magnified carotid angiography in a prospective evaluation of 161 carotid arteries in 86 patients. The duplex scanner combined real-time B-mode imaging (7.5 MHz) with simultaneous range-gated pulsed Doppler frequency analysis (3 MHz). The degree of stenosis was usually determined by the true and residual lumen of the carotid artery at t...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • AJNR. American journal of neuroradiology

دوره 3 6  شماره 

صفحات  -

تاریخ انتشار 1982