磁共振成像引导前列腺活检液压针头输送系统的初步评价

IF 0.8 4区医学 Q4 ENGINEERING, BIOMEDICAL

Journal of Medical Devices-Transactions of the Asme Pub Date : 2021-12-01 DOI:10.1115/1.4051610

D. I. Mahcicek, Korel D. Yildirim, Gokce Kasaci, O. Kocaturk

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引用次数: 0

摘要

在临床常规中，前列腺活检程序是在经直肠超声（TRUS）成像的指导下进行的，以诊断前列腺癌症。然而，由于前列腺组织和病变之间缺乏对比度差异，TRUS引导的前列腺活检带来了可靠性问题。在这项研究中，介绍了一种新型的液压针头输送系统，该系统旨在通过会阴入路进行磁共振成像（MRI）引导的前列腺活检程序。在MRI指导下，通过体外体模实验评估了整个系统的可行性。使用经认证的前列腺模型（包括MRI可见病变）进行的体外实验。MRI实验表明，整个液压活检针输送系统具有良好的MRI兼容性（信噪比（SNR）损失 < 3%），提供可接受的瞄准精度（平均2.05±0.46 mm）和手术时间（平均40 分钟）。

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Preliminary Evaluation of Hydraulic Needle Delivery System for Magnetic Resonance Imaging-Guided Prostate Biopsy Procedures

In clinical routine, the prostate biopsy procedure is performed with the guidance of transrectal ultrasound (TRUS) imaging to diagnose prostate cancer. However, the TRUS-guided prostate biopsy brings reliability concerns due to the lack of contrast difference between prostate tissue and lesions. In this study, a novel hydraulic needle delivery system that is designed for performing magnetic resonance imaging (MRI)-guided prostate biopsy procedure with transperineal approach is introduced. The feasibility of the overall system was evaluated through in vitro phantom experiments under an MRI guidance. The in vitro experiments performed using a certified prostate phantom (incorporating MRI visible lesions). MRI experiments showed that overall hydraulic biopsy needle delivery system has excellent MRI compatibility (signal to noise ratio (SNR) loss < 3%), provides acceptable targeting accuracy (average 2.05±0.46 mm) and procedure time (average 40 min).

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来源期刊

Journal of Medical Devices-Transactions of the Asme ENGINEERING, BIOMEDICAL-

CiteScore

1.80

自引率

11.10%

发文量

审稿时长

6-12 weeks

期刊介绍： The Journal of Medical Devices presents papers on medical devices that improve diagnostic, interventional and therapeutic treatments focusing on applied research and the development of new medical devices or instrumentation. It provides special coverage of novel devices that allow new surgical strategies, new methods of drug delivery, or possible reductions in the complexity, cost, or adverse results of health care. The Design Innovation category features papers focusing on novel devices, including papers with limited clinical or engineering results. The Medical Device News section provides coverage of advances, trends, and events.