The use of production control techniques including statistical analysis, queuing theory, and statistical process control yielded big MRI efficiency gains at a 1,200-bed German hospital, say the authors of a new study in the September issue of the Journal of the American College of Radiology.
The use of production control techniques including statistical analysis, queuing theory, and statistical process control yielded big MRI efficiency gains at a 1,200-bed German hospital, say the authors of a new study in the September issue of the Journal of the American College of Radiology.
Researchers led by Li Zhang, PhD, of the department of radiology of University Hospital Giessen and Marburg, pulled out the stops as far as process analysis. They determined customer value using a Kano questionnaire; they measured current-state process and performance data; they timed processes and did process value mapping. They identified and prioritized root causes that hampered MRI process flow using a fishbone diagram as well as failure mode and effect analysis. They applied statistical analysis, queuing theory, and statistical process control to describe and understand process behaviors, to test hypotheses, to validate solutions, and to monitor results.
The team set its sights on providing MRI access to patients within 24 hours, which patients valued. Among the fixes they instituted to get there: adding radiation technologists, avoiding repeat scans, ensuring that patients were at hand come MRI time, and ensuring that MRI protocols were predefined and not created at the last minute by the technologists.
It paid off handsomely, they said. The percentage of patients who underwent MRI scanning within 24 hours shot up from 53 percent to more than 90 percent, with mean cycle time falling from 52 minutes to 39 minutes. Monthly throughput rose 38 percent. Scanner productivity climbed 32 percent. And it paid off financially, as well. Zhang and colleagues estimated revenue and savings at about €247,000 ($340,000) in the first year alone.
Stay at the forefront of radiology with the Diagnostic Imaging newsletter, delivering the latest news, clinical insights, and imaging advancements for today’s radiologists.
FDA Expands Approval of MRI-Guided Ultrasound Treatment for Patients with Parkinson’s Disease
July 9th 2025For patients with advanced Parkinson’s disease, the expanded FDA approval of the Exablate Neuro platform allows for the use of MRI-guided focused ultrasound in performing staged bilateral pallidothalamic tractotomy.
FDA Clears Virtually Helium-Free 1.5T MRI System from Siemens Healthineers
June 26th 2025Offering a cost- and resource-saving DryCool magnet technology, the Magnetom Flow.Ace MRI system reportedly requires 0.7 liters of liquid helium for cooling over the lifetime of the device in contrast to over 1,000 liters commonly utilized with conventional MRI platforms.