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使用小型射频线圈对睾丸进行高分辨率磁共振成像。

High Resolution MR Imaging of the Testis Using a Small Radiofrequency Coil.

作者信息

Yamaguchi Masayuki, Kojo Kosuke, Akatsuka Mizuki, Haishi Tomoyuki, Kobayashi Tatsushi, Nakajima Takahito, Nishiyama Hiroyuki, Fujii Hirofumi

机构信息

Division of Functional Imaging, Exploratory Oncology Research & Clinical Trial Center, National Cancer Center.

Department of Urology, Faculty of Medicine, University of Tsukuba.

出版信息

Magn Reson Med Sci. 2023 Jan 1;22(1):127-136. doi: 10.2463/mrms.tn.2021-0130. Epub 2022 Mar 23.

DOI:10.2463/mrms.tn.2021-0130
PMID:35321985
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9849421/
Abstract

We have developed a new device, consisting of a 3-cm RF coil and an immobilizer, to acquire high-resolution MR images of the testis. With the approval of our institutional review board, we conducted an MRI study on a cohort of healthy volunteers to test this device. With the participants in the supine position, we placed the dedicated immobilizer and RF coil on the scrotum for typically no more than 3 min. Subsequently, T2-weighted images were acquired with an in-plane resolution of 117 µm using a 3-T MR scanner and the periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) sequence. The total scan time ranged from 12 to 30 min (average 20 min). High-resolution MR images of the testis were acquired without deterioration by motion artifacts. Our results showed that the combined use of a small RF coil and an immobilizer is a feasible option for acquiring high-resolution MR images of the testis.

摘要

我们研发了一种新设备，它由一个3厘米的射频线圈和一个固定器组成，用于获取睾丸的高分辨率磁共振图像。经机构审查委员会批准，我们对一组健康志愿者进行了一项磁共振成像研究，以测试该设备。让参与者仰卧，我们将专用固定器和射频线圈放置在阴囊上，通常不超过3分钟。随后，使用3-T磁共振扫描仪，采用平面分辨率为117微米的周期性旋转重叠平行线增强重建（PROPELLER）序列采集T2加权图像。总扫描时间为12至30分钟（平均20分钟）。获得了睾丸的高分辨率磁共振图像，且未因运动伪影而质量下降。我们的结果表明，联合使用小型射频线圈和固定器是获取睾丸高分辨率磁共振图像的可行选择。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/752a/9849421/9d8b50e39ba1/mrms-22-127-g6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/752a/9849421/31af34ed9a22/mrms-22-127-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/752a/9849421/1e3969f12b85/mrms-22-127-g1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/752a/9849421/4526183b9218/mrms-22-127-g2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/752a/9849421/46f39a330933/mrms-22-127-g3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/752a/9849421/8bec414757fe/mrms-22-127-g4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/752a/9849421/e684b621b673/mrms-22-127-g5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/752a/9849421/9d8b50e39ba1/mrms-22-127-g6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/752a/9849421/31af34ed9a22/mrms-22-127-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/752a/9849421/1e3969f12b85/mrms-22-127-g1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/752a/9849421/4526183b9218/mrms-22-127-g2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/752a/9849421/46f39a330933/mrms-22-127-g3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/752a/9849421/8bec414757fe/mrms-22-127-g4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/752a/9849421/e684b621b673/mrms-22-127-g5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/752a/9849421/9d8b50e39ba1/mrms-22-127-g6.jpg

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