자기공명영상에서 ACR 팬텀을 이용한 잡음전력스펙트럼 평가

• 영문명: Evaluation of the Noise Power Spectrum by Using American College of Radiology Phantom for Magnetic Resonance Imaging
• 발행기관: 대한방사선과학회(구 대한방사선기술학회)
• 저자명: 민정환(Jung-Whan Min) 정회원(Hoi-Woun Jeong)
• 간행물 정보: 『방사선기술과학』제47권 제1호, 21~28쪽, 전체 8쪽
• 주제분류: 의약학 > 방사선과학
• 파일형태: PDF
• 발행일자: 2024.02.29

영문 초록

This study was purpose to quantitative evaluation of comparison of the image intensity uniformity and noise power spectrum (NPS) by using American college of radiology (ACR) phantom for magnetic resonance imaging (MRI). The MRI was used achiva 3.0T MRI and discovery MR 750, 3.0T, the head and neck matrix shim SENSE head coil were 32 channels receive MR coil. The MRI was used parameters of image sequence for ACR standard and general hospital. NPS value of the ACR standard T2 vertical image in GE equipment was 7.65E-06 when the frequency was 1.0 mm-1. And the NPS value of the ACR hospital T1 region of interest (ROI) 9 over all vertical image in Philips equipment was 9E-08 when the frequency was 1.0 mm-1 and the NPS value of the hospital T2 ROI 9 over all vertical image in Philips equipment was 1.06E-07 when the frequency was 1.0 mm-1. NPS was used efficiently by using a general hospital vertical sequence more than the standard vertical sequence method by using the ACR phantom. Furthermore NPS was the quantitative quality assurance (QA) assessment method for noise and image intensity uniformity characteristics was applied mutatis mutandis, and the results values of the physical imaging NPS of the 3.0T MRI and ACR phantom were presented.

목차

Ⅰ. 서 론

Ⅱ. 대상 및 실험방법

Ⅲ. 결 과

Ⅳ. 고 찰

Ⅴ. 결 론

REFERENCES

키워드

품질보증 ACR 자기공명영상 팬텀 잡음전력스펙트럼 영상 강도 균일성 국제전기기위원회 Quality Assurance ACR Magnetic Resonance Imaging Phantom Noise Power Spectrum Image Intensity Uniformity International Electro-technical Commission