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"To-and-fro" waveform in the diagnosis of arterial pseudoaneurysms

World Journal of Radiology 2015年第5期7卷 89-99页

作者： Mustafa Z Mahmoud Mohammed Al-Saadi Abdulwahab Abuderman Khalid S Alzimami Mohammed Alkhorayef babikir almagli Abdelmoneim Sulieman Radiology and Medical Imaging Department College of Applied Medical SciencesPrince Sattam bin Abdulaziz University Basic Medical Sciences Department College of Medical Radiological SciencesSudan University of Science and Technology Basic Medical Sciences Department College of MedicinePrince Sattam bin Abdulaziz University Radiological Sciences Department College of Applied Medical SciencesKing Saud University Diagnostic Radiology Department Faculty of Radiology and Nuclear Medicinethe National Ribat University

Medical ultrasound imaging with Doppler plays an essential role in the diagnosis of vascular disease. This study intended to review the clinical use of "to-and-fro" waveform at duplex Doppler ultrasonography(DDU) in the diagnosis of pseudoaneurysms in the arterial vessels of upper and lower extremities, abdominal aorta, carotid and vertebral arteries as well as to review our personal experiences of "to-and-fro" waveform at DDU also. After receiving institutional review board approval, an inclusive literature review was carried out in order to review the scientific foundation of "toand-fro" waveform at DDU and its clinical use in the diagnosis of pseudoaneurysms in various arterial vessels. Articles published in the English language between 2000 and 2013 were evaluated in this review study. Pseudoaneurysms in arterial vessels of the upper and lower extremities, abdominal aorta, carotid and vertebral arteries characterized by an extraluminal pattern of blood flow, which shows variable echogenicity, interval complexity, and "to-and-fro" flow pattern on color Doppler ultrasonography. In these arterial vessels, Duplex ultrasonography can demonstrate the degree of clotting, pseudoaneurysm communication, the blood flow patterns and velocities. Spectral Doppler applied to pseudoaneurysms lumen revealed systolic and diastolic turbulent blood flow with traditional "toand-fro" waveform in the communicating channel. Accurate diagnosis of pseudoaneurysm by spectral Doppler is based on the documentation of the "to-andfro" waveform. The size of pseudoaneurysm determines the appropriate treatment approach as surgical or conservative.

关键词： Pseudoaneurysm To-and-fro waveform Ultrasonography Percutaneous thrombin injection YinYang sign

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