Department of Radiology, University of Michigan Health System, Ann Arbor, Michigan.
Department of Radiology, University of Michigan Health System, Ann Arbor, Michigan.
J Am Coll Radiol. 2018 Jun;15(6):859-864. doi: 10.1016/j.jacr.2018.02.004. Epub 2018 Apr 4.
The purpose of this quality improvement (QI) initiative was to increase patient access to breast MR while maintaining diagnostic image quality.
Institutional review board approval was waived for this HIPAA-compliant QI initiative, which was conducted from December 2014 through March 2016. Breast MR wait times, scheduling grids, and staffing models were reviewed to identify root causes of elevated wait times. Breast MR wait times were tracked on a biweekly basis as root causes were identified and action plans were implemented. Patient recall rates for repeat MR imaging were tracked. A retrospective analysis of image quality was performed in a randomly selected sample (20 per month; total: 320 examinations). Wait time and image quality data were analyzed with statistical process control charts and logistic regression.
In all, 798 breast MR examinations were performed during the study period. Monthly volume increased from 23 in December 2014 to 50 in March 2016 (range: 23-64). Wait time for a routine breast MRI fell from 101 days before implementation to 5 days at study completion. The technical recall rate was 0.5% (4 of 798); no recall was performed for a technologist-related error or scan quality concern. The proportion of examinations with minor (31% [99 of 320]) or major (3% [9 of 320]) image quality impairments did not significantly change during the study period (P = .69-.70).
A specialized MR examination was transitioned into routine clinical operation while maintaining image quality. This model may be useful for transitioning other specialized diagnostic imaging examinations into routine clinical practice.
本质量改进(QI)计划的目的是在保持诊断图像质量的同时增加患者接受乳房磁共振检查的机会。
这项符合 HIPAA 规定的 QI 计划豁免了机构审查委员会的批准,于 2014 年 12 月至 2016 年 3 月进行。审查了乳房磁共振检查的等待时间、预约表和人员配备模型,以确定导致等待时间延长的根本原因。在确定根本原因并实施行动计划的同时,每两周跟踪一次乳房磁共振检查的等待时间。跟踪了重复磁共振成像的患者召回率。对随机选择的样本(每月 20 例;总计 320 例检查)进行了回顾性图像质量分析。使用统计过程控制图和逻辑回归分析等待时间和图像质量数据。
在研究期间共进行了 798 例乳房磁共振检查。每月检查量从 2014 年 12 月的 23 例增加到 2016 年 3 月的 50 例(范围:23-64 例)。常规乳房磁共振检查的等待时间从实施前的 101 天减少到研究结束时的 5 天。技术召回率为 0.5%(798 例中有 4 例);没有因技术人员相关错误或扫描质量问题而进行召回。在研究期间,轻微(31%[320 例中有 99 例])或主要(3%[320 例中有 9 例])图像质量受损的检查比例没有显著变化(P=.69-.70)。
在保持图像质量的同时,将一项专门的磁共振检查转变为常规临床操作。这种模式可能有助于将其他专门的诊断影像学检查转变为常规临床实践。