Six-dimensional quantitative DCE MR multitasking of the entire abdomen: method and application to pancreatic ductal adenocarcinoma
Open accessAbstract
Purpose: To develop a quantitative DCE MRI technique enabling entire‐abdomen coverage, free‐breathing acquisition, 1‐second temporal resolution, and T 1‐based quantification of contrast agent concentration and kinetic modeling for the characterization of pancreatic ductal adenocarcinoma (PDAC). Methods: Segmented FLASH readouts following saturation‐recovery preparation with randomized 3D Cartesian undersampling was used for incoherent data acquisition. MR Multitasking was used to reconstruct 6‐dimensional images with 3 spatial dimensions, 1 T 1 recovery dimension for dynamic T 1 quantification, 1 respiratory dimension to resolve respiratory motion, and 1 DCE time dimension to capture the contrast kinetics. Sixteen healthy subjects and 14 patients with pathologically confirmed PDAC were recruited for the in vivo studies, and kinetic parameters v p, K trans, v e, and K ep were evaluated for each subject. Intersession repeatability of Multitasking DCE was assessed in 8 repeat healthy subjects. One‐way unbalanced analysis of variance was performed between control and patient groups. Results: In vivo studies demonstrated that v p, K trans, and K ep of PDAC were significantly lower compared with nontumoral regions in the patient group (P = .002, .003, .004, respectively) and normal pancreas in the control group (P = .011, <.001, <.001, respectively), while v e was significantly higher than nontumoral regions (P < .001) and healthy pancreas (P < .001). The kinetic parameters showed good in vivo repeatability (interclass correlation coefficient: v p, 0.95; K trans, 0.98; v e, 0.96; K ep, 0.99). Conclusion: The proposed Multitasking DCE is promising for the quantification of vascular properties of PDAC. Quantitative DCE parameters were repeatable in vivo and showed significant differences between normal pancreas and both tumor and nontumoral regions in patients with PDAC.
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Self-citation
- Authors
- Wang, N., Gaddam, S., Wang, L., Xie, Y., Fan, Z., Yang, W., Tuli, R., Lo, S., Hendifar, A., Pandol, S., Christodoulou, A. G., & Li, D.
- Affiliations
- Cedars-Sinai Medical Center (US)
- University of Southern California (US)
- Memorial Sloan Kettering Cancer Center (US)
- Corresponding author
- Li, Debiao
- ORCID
- Venue
- Magnetic Resonance in Medicine
- Publisher
- Wiley
- Published
- 2020-01-21
- Volume
- 84
- Issue
- 2
- Pages
- 928-948
- ISSN
- 0740-3194 (ISSN-L)
- 1522-2594
- PMC
- PMC7323577
- OpenAlex
- W3001242346
- Cited by
- 21
- References
- 60
- Citations by year
- 2026: 2 · 2024: 3 · 2023: 2 · 2022: 6 · 2021: 8
- FWCI
- 1.95
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Magnetic Resonance in Medicine (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- eScholarship (California Digital Library) (submittedVersion)
- Funders
- National Cancer Institute (R21CA234637, P30CA008748)
- Topics
- Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › MRI in cancer diagnosis
- Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
- Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Medical Imaging Techniques and Applications
- Keywords
- pancreatic ductal adenocarcinoma, dynamic contrast-enhanced MRI, vascular parameters, free-breathing acquisition, respiratory motion correction
- MeSH terms
- Abdomen, Adenocarcinoma, Contrast Media, Humans, Magnetic Resonance Imaging, Pancreatic Neoplasms
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