AI Article Synopsis
- This study analyzes the effectiveness of an ultrashort-protocol (USP) MRI compared to longer MRI protocols in measuring pancreatic cysts and ducts while identifying concerning features in patients with IPMN (Intrapancreatic Mucinous Neoplasms).
- Both USP and short/long protocols (S-LP) showed a high level of agreement for detecting important features, with 94.9% consistency for cysts/MPD nodules and 99.1% for solid tumors, suggesting USP is a viable alternative.
- The cost of USP was significantly lower, at 39% of the longer protocol cost, making it a more economical option without compromising diagnostic quality.
Article Abstract
Purpose: To evaluate whether an ultrashort-protocol (USP) MRI including only T2-weighted HASTE axial and 3D MRCP SPACE sequences adequately measures the largest diameter of the largest cyst and the main pancreatic duct (MPD) and identifies worrisome features (WF) and high-risk stigmata (HRS) when compared to longer protocols (LP, long protocol; SP, short protocol; S-LP, short or long protocol). We also calculated reductions in costs associated with USP.
Methods: This retrospective study included 183 IPMN patients. Two radiologists compared two imaging sets (USP versus S-LP) per patient, comparing the mean values of the largest cyst and MPD and agreement regarding the presence or absence of cystic or MPD mural nodules and solid pancreatic tumors. The interobserver agreement for cystic mural nodules and WF/HRS was evaluated, using the Bland-Altman plot and Cohen's Kappa.
Results: A total of 112 IPMN patients were evaluated. For detecting cysts or MPD nodules, WF/HRS, and solid pancreatic tumors, USP and S-LP coincided in 94.9%, 99.1%, 92.4%, and 99.1% of cases, respectively. Both USP and S-LP identified all true cystic mural nodules. The mean size of the largest cyst and MPD was 19.48/19.67 mm and 3.24/3.33 mm using USP versus S-LP, while the mean differences for USP versus S-LP were 0.19 mm and 0.08 mm. The USP cost was 39% of LP cost and 77% of SP. Interobserver agreement was moderate to strong.
Conclusions: For IPMN surveillance, an ultrashort-protocol MRI provides nearly identical information to the more expensive longer protocols.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8807431 | PMC |
| http://dx.doi.org/10.1007/s00261-021-03382-4 | DOI Listing |
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