Gastric motility and emptying assessment by magnetic resonance imaging after lung transplantation: correlation with gastric emptying scintigraphy

Abstract

MRI-based determinations of gastric motility and gastric emptying correlate with GES-based gastric emptying in lung transplant recipients, suggesting that MRI is useful for evaluating patients with gastroparesis.

The evolution of magnetic resonance enterography in the assessment of motility disorders in children

“…Specifically for the investigation of transit and emptying [33], the technique is suitably validated and numerous studies have been conducted examining the impact of different meal types and compositions on emptying times. MRI itself has been compared with scintigraphy [34], [35] and good agreement has been observed. Beyond transit, MRI can offer functional information on contractility allowing a user to observe not only large propagating contractions but also, small sub-occlusive events that are difficult even to observe with existing techniques (e.g.…”

“…The potential ability to combine multiple measurements of gastric physiology in one scanning session makes MRI versatile and informative modality [35], [37], [41]. In a feasibility study, MRI has…”

Simultaneous Measurement of Gastric Emptying of a Soup Test Meal Using MRI and Gamma Scintigraphy

“…Gastric content volumes were fitted to a five-parameter equation [16] to model the emptying process and to calculate gastric half emptying time (T 1/2 ). As with [17], the retention rates RR (%) of gastric content volumes were also calculated as the percentage of GCV in the stomach at each time point relative to the GCV measured at time 0.…”

“…Two studies have shown a good correlation between the two modalities, once the additional contribution of gastric secretion volume was considered [15,16]. Another recent study of gastrointestinal complications after lung transplantation found no significant differences between gastric emptying parameters measured with MRI and GS [17].…”

Will MRI of gastrointestinal function parallel the clinical success of cine cardiac MRI?

“…This may be because of time-consuming data analysis. More recently there have been several papers looking at gastric motility 23,[40][41][42] using more automated software for analysis and these improvements could offer MRI as a potential alternative to manometry and gamma scintigraphy by combining motility and emptying in a single examination.…”