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Manual of Transcranial Doppler Ultrasonography
Korean J Clin Lab Sci 2024;56:277-287  
Published on September 30, 2024
Copyright © 2024 Korean Society for Clinical Laboratory Science.

Ho Tae JEONG1 , Soo Na JEON2 , Sol HAN2

1Neurology Laboratory, Chung-Ang University Hospital, Seoul, Korea
2Neurology Laboratory, Chung-Ang University Gwangmyeong Hospital, Gwangmyeong, Korea
Correspondence to: Ho Tae JEONG
Neurology Laboratory, Chung-Ang University Hospital, 102 Heukseok-ro, Dongjak-gu, Seoul 06973, Korea
E-mail: hotaejeong@cau.ac.kr
ORCID: https://orcid.org/0000-0001-9228-6912
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Transcranial Doppler (TCD) ultrasound is a crucial non-invasive tool for assessing cerebral blood flow and is widely used to diagnose and monitor cerebrovascular diseases. This paper reaffirms the importance of TCD, details examination methods and precautions, and provides a guide for practitioners. TCD evaluates the blood flow velocity to assess stenosis, occlusion, and hemodynamic changes. Distinguishing between increased blood flow volume and decreased vessel diameter based solely on velocity is challenging, necessitating a comprehensive approach to integrating clinical findings and hemodynamic changes. The reliability of TCD results depends on the skill of the examiner and requires standardized procedures and continuous training. Advances in automation and artificial intelligence promise enhanced accuracy and reliability. Future research should focus on validating and clinically applying these technologies. This paper is a review of the clinical significance of TCD, methods, and precautions, offering a valuable guide for practitioners and highlighting the potential benefits of ongoing advancements in TCD for the diagnosis and treatment of cerebrovascular diseases.
Keywords : Blood circulation, Cerebral arteries, Doppler effect, Transcranial

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