Background: Time-sequenced magnetic resonance imaging (MRI) of the stomach is an emerging technique for non-invasive assessment of gastric emptying and motility. However, an automated and systematic image processing pipeline for analyzing dynamic 3D (ie, 4D) gastric MRI data has not been established. This study uses an MRI protocol for imaging the stomach with high spatiotemporal resolution and provides a pipeline for assessing gastric emptying and motility.
Methods: Diet contrast-enhanced MRI images were acquired from seventeen healthy humans after they consumed a naturalistic contrast meal. An automated image processing pipeline was developed to correct for respiratory motion, to segment and compartmentalize the lumen-enhanced stomach, to quantify total gastric and compartmental emptying, and to compute and visualize gastric motility on the luminal surface of the stomach.
Key Results: The gastric segmentation reached an accuracy of 91.10 ± 0.43% with the Type-I error and Type-II error being 0.11 ± 0.01% and 0.22 ± 0.01%, respectively. Gastric volume decreased 34.64 ± 2.8% over 1 h where the emptying followed a linear-exponential pattern. The gastric motility showed peristaltic patterns with a median = 4 wave fronts (range 3-6) and a mean frequency of 3.09 ± 0.07 cycles per minute. Further, the contractile amplitude was stronger in the antrum than in the corpus (antrum vs. corpus: 5.18 ± 0.24 vs. 3.30 ± 0.16 mm; p < 0.001).
Conclusions & Inferences: Our analysis pipeline can process dynamic 3D MRI images and produce personalized profiles of gastric motility and emptying. It will facilitate the application of MRI for monitoring gastric dynamics in research and clinical settings.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/nmo.14239 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The Role of Patient-Controlled Epidural Analgesia in the Short-Term Outcomes of Laparoscopic-Assisted Gastrectomy in Elderly Gastric Cancer Patients.
J Surg Res
January 2025
Department of Gastrointestinal Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China. Electronic address:
Introduction: Patient-controlled intravenous analgesia (PCIA) and patient-controlled epidural analgesia (PCEA) constitute two major advances in pain management after major abdominal surgery. However, the role of PCIA or PCEA has not been particularly studied in elderly patients with gastric cancer. The aim of this study is to make a comparison between PCIA and PCEA in terms of their performance on short-term outcomes in elderly patients undergoing laparoscopic-assisted gastrectomy.
View Article and Find Full Text PDFThe multifaceted roles of aldolase A in cancer: glycolysis, cytoskeleton, translation and beyond.
Hum Cell
January 2025
Institute of Translational Medicine, Medical College, Yangzhou University, No. 136 Jiangyangzhonglu, Yangzhou, 225009, Jiangsu, China.
Cancer, a complicated disease characterized by aberrant cellular metabolism, has emerged as a formidable global health challenge. Since the discovery of abnormal aldolase A (ALDOA) expression in liver cancer for the first time, its overexpression has been identified in numerous cancers, including colorectal cancer (CRC), breast cancer (BC), cervical adenocarcinoma (CAC), non-small cell lung cancer (NSCLC), gastric cancer (GC), hepatocellular carcinoma (HCC), pancreatic cancer adenocarcinoma (PDAC), and clear cell renal cell carcinoma (ccRCC). Moreover, ALDOA overexpression promotes cancer cell proliferation, invasion, migration, and drug resistance, and is closely related to poor prognosis of patients with cancer.
View Article and Find Full Text PDFMfsd2a suppresses colorectal cancer progression and liver metastasis via the S100A14/STAT3 axis.
J Transl Med
January 2025
Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
Background: Colorectal cancer (CRC) exhibits a high incidence globally, with the liver being the most common site of distant metastasis. At the time of diagnosis, 20-30% of CRC patients already present with liver metastases. Colorectal liver metastasis (CRLM) is a major cause of mortality among CRC patients.
View Article and Find Full Text PDFBarriers affecting the quality and consistency of barium studies in radiologists and registrars.
Abdom Radiol (NY)
January 2025
SA Health, Adelaide, Australia.
The barium swallow study is a fluoroscopic study which provides valuable insights into the motility, function and morphology of the pharynx, oesophagus, gastroesophageal junction, proximal stomach and duodenum. It has been observed that the skill of radiology doctors with barium swallow studies in adults has diminished. This reduced proficiency with barium swallow study is closely linked to and perpetuated by the heterogeneity of technique amongst radiologists.
View Article and Find Full Text PDFRapid-release and user-friendly costunolide/dehydrocostuslactone hydrophilic nanofibers: Therapeutic effects on acute gastric ulcers.
Int J Pharm
January 2025
Holistic Integrative Medicine Industry Collaborative Innovation Research Center, Qiang Medicine Standard Research Promotion Base and Collaborative Innovation Research Center, School of Preclinical Medicine, Chengdu University, Sichuan-Chengdu 610106, China. Electronic address:
Gastric ulcers often cause postprandial epigastric pain, especially in acute cases. Abnormal motility, with about 50 % of patients having delayed gastric emptying, contributes to ulcer development. Costunolide (COS) and dehydrocostuslactone (DEH), derived from "Mu xiang" herbs, show potential in treating ulcers and regulating gastrointestinal motility.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!