뇌혈류초음파검사에서의 주의사항 및 제안
Precautions and Suggestions for Transcranial Doppler Ultrasonography
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뇌혈류초음파(TCD) 검사는 일반적으로 2 MHz의 낮은 주파수를 이용해서 두개강 내의 혈류속도 및 파형을 측정하는 검사이다. 많은 병원에서 병리사들이 검사를 시행하고 있고 학교, 뿐만 아니라 학회차원에서 교육들도 이루어지고 있다. 하지만TCD검사는 검사자의 스킬이 무엇보다 중요한 검사 중에 하나다. 처음으로 검사를 접하는 검사자들은 혈관이 잘 찾아지지 않아 고민이 생기고, 어느 정도 경험한 검사자들은 혈관이 너무 많이 찾아져서 고민이 된다고 한다. 직접 혈관을 보고 측정하는 검사가 아니기 때문에 많은 제한과 어려움이 있을 수밖에 없다. 그래서 TCD 검사자들을 위해서 검사를 시행할 때 주의사항과 노하우를 소개함으로써 도움을 드리고자 한다.
Abstract
Transcranial doppler ultrasonography (TCD) applies a low frequency of 2 MHz to measure the blood flow velocity and waveform within the skull. Medical technologists at several hospitals are conducting these examinations, and education is being imparted in many schools and academic societies. However, the skill of the tester is of utmost importance when performing TCD. Technicians who are conducting the procedure for the first time have trouble locating the blood vessels, and some experienced personnel are worried because too many blood vessels are present. Since this procedure does not directly look at and measure blood vessels, there are several limitations and difficulties. Therefore, this study aims to provide some help by introducing precautions and suggestions for TCD technicians conducting the test.
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