The Cinderellas of the scanner: Magnetic resonance imaging ‘pre-scan’ and ‘post-scan’ times: Their determinants and impact on patient throughput

SA Journal of Radiology


 
 
Field Value
 
Title The Cinderellas of the scanner: Magnetic resonance imaging ‘pre-scan’ and ‘post-scan’ times: Their determinants and impact on patient throughput
 
Creator van Rooyen, Marthinus B. Pitcher, Richard D.
 
Subject Radiology imaging workflow; magnetic resonance imaging; determinants; service efficiency; ANOVA.
Description Background: Increasing demand for magnetic resonance imaging (MRI) has contributed to extended patient waiting times worldwide. This is particularly true in resource-limited environments, prompting this institutional workflow analysis.Objective: To determine the ‘pre-’ and ‘post-scan’ times for normal-hour MRI studies conducted at a tertiary-level, public-sector South African hospital and to assess any association with demographic details, patient characteristics, anatomical site and scan parameters. A secondary objective was determination of the average daily MR ‘down’ time.Methods: A prospective descriptive study stratifying MRI workflow into ‘pre-scan’, ‘scan’, ‘post-scan’ and ‘down’ times. During ‘pre-‘ and ‘post-scan’ times patients occupied the scanner whilst staff performed tasks indirectly contributing to image acquisition. During ‘down’ time no patient occupied the MRI room. ‘Pre-’ and ‘post-scan’ times were compared with demographic details, patient characteristics, anatomical site and study parameters, utilising correlation analysis or analysis of variance (ANOVA).Results: A total of 223 patients (n = 223) underwent 286 investigations in the 23-day review period. Seventy per cent of routine working time was utilised in image acquisition. The ‘pre-’ and ‘post-scan’ times together accounted for 19% and ‘down’ time for 11% of working time. Prolonged ‘pre-’ and ‘post-scan’ times were independently associated with age less than 12 years, anaesthesia, sedation and immobility (p 0.01 in all cases). The longest median combined ‘pre-’ and ‘post-scan’ time by anatomical site (cholangiopancreatography, 21:46 min) was more than six times the shortest (pituitary fossa, 3:11 min).Conclusion: A critical analysis of magnetic resonance ‘pre-’ and ‘post-scan’ times can provide valuable insights into opportunities for enhanced service efficiency.
 
Publisher AOSIS
 
Contributor Not applicable
Date 2020-12-01
 
Type info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion — Prospective descriptive study
Format text/html application/epub+zip text/xml application/pdf
Identifier 10.4102/sajr.v24i1.1946
 
Source South African Journal of Radiology; Vol 24, No 1 (2020); 6 pages 2078-6778 1027-202X
 
Language eng
 
Relation https://sajr.org.za/index.php/sajr/article/view/1946/2649 https://sajr.org.za/index.php/sajr/article/view/1946/2648 https://sajr.org.za/index.php/sajr/article/view/1946/2650 https://sajr.org.za/index.php/sajr/article/view/1946/2647
 
Coverage Africa; South Africa; Western Cape June 2019 All Magnetic resonance imaging patients
Rights Copyright (c) 2020 Marthinus B. van Rooyen, Richard D. Pitcher https://creativecommons.org/licenses/by/4.0