DWI-PDAC: Diagnostic Value of DWI-MRI for Detection of Peritoneal Metastases in High-risk Pancreatic Ductal Adenocarcinoma.
Study Details
Study Description
Brief Summary
Diffusion-weighted magnetic resonance imaging (DWI/MRI) has been described in recent literature as a highly sensitive and specific modality for the detection of peritoneal metastases (PM). It has been demonstrated to be superior to computed tomography (CT) for patients with known peritoneal disease from colorectal and gynaecological malignancies. However, the literature is scarce on the role of DWI/MRI in patients with pancreatic ductal-adenocarcinoma (PDAC). The aim of this study is to prospectively assess the added value of whole-body DWI/MRI (WB-DWI/MRI) to CT for detection of PM in the preoperative staging of patients with high-risk PDAC and evaluate how it correlates with intraoperative findings.
Condition or Disease | Intervention/Treatment | Phase |
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N/A |
Detailed Description
This is a prospective study from a single center. Patients will be evaluated and operated on by one of five surgeons with a subspeciality in hepato-biliary and pancreatic surgery. After thorough assessment for resectability, patients with PDAC considered resectable based on CT, but at high-risk for peritoneal disease, will be prospectively included in the study and assessed with WB-DWI/MRI within 4 weeks of the planned surgery, with the standard protocol including the following sequences: Patients will drink 1L of pineapple juice one hour prior to the examination in order to provide a negative intraluminal contrast. Patients will receive 20 mg of intravenous hyoscine butylbromide at the beginning of the MR exam in order to reduce bowel peristalsis. Sequences will include Axial et Coronal T2WI of the abdomen and pelvis, axial DWI with b values of 0, 50 and 1000 of the abdomen and pelvis, as well as Pre and post gadolinium-based contrast Axial and Coronal 3D T1WGRE. Patients with no evidence of PM on WB-DWI/MRI will be operated on and undergo pancreatic resection following the usual exploration of the peritoneal cavity in case of occult metastatic disease. Patients with suspicion of PM on WB-DWI/MRI will be approached with a diagnostic laparoscopy first, then undergo pancreatic resection if no evidence of PM is found. Each case will be followed for at least 6 months.
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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Experimental: DWI-MRI Patients to undergo DWI-MRI (patients include in the study. |
Diagnostic Test: Whole-body diffusion-weighted magnetic resonance imaging
See arm description.
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Outcome Measures
Primary Outcome Measures
- Peritoneal findings [24 months]
The number of cases in which peritoneal findings on MRI altered clinical management.
- Unexpected abortion [24 months]
The rate of unexpected aborted surgery due to peritoneal metastases discovery at surgery.
Secondary Outcome Measures
- Early distant recurrence [30 months]
The number of cases with early distant recurrence (less than 6 months).
Eligibility Criteria
Criteria
Inclusion Criteria:
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Confirmed diagnosis of pancreatic ductal adenocarcinoma.
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Resectable disease or borderline resectable disease based on CT.
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Tumor size ≥ 3 cm.
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CA 19-9 ≥ 400 U/mL with normal bilirubin level (< 40)
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No evidence of distant metastases.
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Patient fit for pancreatic resection (ECOG 0 or 1).
Exclusion Criteria:
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Impossibility to obtain tissue diagnosis preoperatively confirming pancreatic ductal adenocarcinoma.
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Locally advanced disease on CT.
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Tumor size < 3 cm.
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CA 19-9 < 400 U/mL or CA 19-9 ≥ 400 U/mL with no preoperative drainage.
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Suspicion of distant metastases, including peritoneal metastases, on CT.
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Patient who is unable to have MRI.
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Patient unfit for pancreatic resection (ECOG 2 or more).
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
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1 | CHU de Québec | Quebec City | Quebec | Canada | G1R 2J6 |
Sponsors and Collaborators
- Laval University
Investigators
- Principal Investigator: Alexandre Brind'Amour, MD, Laval University
Study Documents (Full-Text)
None provided.More Information
Publications
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- Brind'Amour A, Webb M, Parapini M, Sidéris L, Segedi M, Chung SW, Chartier-Plante S, Dubé P, Scudamore CH, Kim PTW. The role of intraperitoneal chemotherapy in the surgical management of pancreatic ductal adenocarcinoma: a systematic review. Clin Exp Metastasis. 2021 Apr;38(2):187-196. doi: 10.1007/s10585-021-10074-2. Epub 2021 Jan 24.
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- Paracha M, Van Orden K, Patts G, Tseng J, McAneny D, Sachs T. Opportunity Lost? Diagnostic Laparoscopy in Patients with Pancreatic Cancer in the National Surgical Quality Improvement Program Database. World J Surg. 2019 Mar;43(3):937-943. doi: 10.1007/s00268-018-4855-8.
- Patel CM, Sahdev A, Reznek RH. CT, MRI and PET imaging in peritoneal malignancy. Cancer Imaging. 2011 Aug 24;11:123-39. doi: 10.1102/1470-7330.2011.0016. Review.
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- Vasilyeva E, Li J, Desai S, Chung SW, Scudamore CH, Segedi M, Kim PT. Impact of surgical wait times on oncologic outcomes in resectable pancreas adenocarcinoma. HPB (Oxford). 2020 Jun;22(6):892-899. doi: 10.1016/j.hpb.2019.10.013. Epub 2019 Nov 13.
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