Evidence map›Paper›PMID 32950386›Full record

ArticlePancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.]2020

Computerized tomography scan in pre-diagnostic pancreatic ductal adenocarcinoma: Stages of progression and potential benefits of early intervention: A retrospective study.

Dhruv Pratap Singh, Shannon Sheedy, Ajit H Goenka, Michael Wells, Nam Ju Lee, John Barlow, Ayush Sharma, Harika Kandlakunta, Shruti Chandra, Sushil Kumar Garg and 4 more

Abstract read
In one paragraph

Article in Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.], 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.7field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

27 citing papers in PubMed, 58 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors at 4 institutions in 1 country.

Dhruv Pratap SinghDivision of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA. Electronic address: druvsingh@gmail.com.
Shannon SheedyDepartment of Radiology, Mayo Clinic, Rochester, MN, USA. Electronic address: sheedy.shannon@mayo.edu.
Ajit H GoenkaDepartment of Radiology, Mayo Clinic, Rochester, MN, USA. Electronic address: goenka.ajit@mayo.edu.
Michael WellsDepartment of Radiology, Mayo Clinic, Rochester, MN, USA. Electronic address: wells.michael@mayo.edu.
Nam Ju LeeDepartment of Radiology, Mayo Clinic, Rochester, MN, USA. Electronic address: lee.namju@mayo.edu.
John BarlowDepartment of Radiology, Mayo Clinic, Rochester, MN, USA. Electronic address: barlow.john@mayo.edu.
Ayush SharmaDivision of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA. Electronic address: drayusharma@gmail.com.
Harika KandlakuntaDivision of Internal Medicine, Staten Island University Hospital, New York, Staten Island, USA. Electronic address: kharika0892@gmail.com.
Shruti ChandraDivision of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA. Electronic address: chandra.shruti@mayo.edu.
Sushil Kumar GargDivision of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA. Electronic address: garg.sushil@mayo.edu.
Shounak MajumderDivision of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA. Electronic address: majumder.shounak@mayo.edu.
Michael J LevyDivision of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA. Electronic address: levy.michael@mayo.edu.
Naoki TakahashiDepartment of Radiology, Mayo Clinic, Rochester, MN, USA. Electronic address: takahashi.naoki@mayo.edu.
Suresh T ChariDivision of Gastroenterology and Hepatology, University of Texas MD Anderson Cancer Center, Houston, TX, USA. Electronic address: stchari@mdanderson.org.
Mayo Clinic in Arizona · USMayo Clinic · USStaten Island University Hospital · USThe University of Texas MD Anderson Cancer Center · US

Funding

Consortium for the Study of Chronic Pancreatitis, Diabetes and Pancreatic Cancer: Coordinating and Data Management Center (CSCPDPC-CDMC)U01DK108328 · NIDDK · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Liang Li, Suyu Liu · 2015 to 2026
$32.8M
The Exocrine and Endocrine Pancreas in Type 2 Diabetes, Pancreatitis and Cancer (Admin Supplement)U01DK108288 · NIDDK · MAYO CLINIC ROCHESTER · PI Santhi Swaroop Vege · 2015 to 2026
$5.9M
NIDDK NIH HHS U01 DK108288NIDDK NIH HHS U01 DK108328
6 · The paper itself

Abstract

backgroundThe frequency, nature and timeline of changes on thin-slice (≤3 mm) multi-detector computerized tomography (CT) scans in the pre-diagnostic phase of pancreatic ductal adenocarcinoma (PDAC) are unknown. It is unclear if identifying imaging changes in this phase will improve PDAC survival beyond lead time.

methodsFrom a cohort of 128 subjects (Cohort A) with CT scans done 3-36 months before diagnosis of PDAC we developed a CTgram defining CT Stages (CTS) I through IV in the radiological progression of pre-diagnostic PDAC. We constructed Cohort B of PDAC resected at CTS I and II and compared survival in CTS I and II in Cohort A (n = 22 each; control natural history cohort) vs Cohort B (n = 33 and 72, respectively; early interception cohort).

resultsCTs were abnormal in 16% and 85% at 24-36 and 3-6 months respectively, before PDAC diagnosis. The PDAC CTgram stages, findings and median lead times (months) to clinical diagnosis were: CTS I: Abrupt duct cut-off/duct dilatation (-12.8); CTS II: Low density mass confined to pancreas (-9.5), CTS III: Peri-pancreatic infiltration (-5.8), CTS IV: Distant metastases (only at diagnosis). PDAC survival was better in cohort B than in cohort A despite inclusion of lead time in Cohort A: CTS I (36 vs 17.2 months, p = 0.03), CTS II (35.2 vs 15.3 months, p = 0.04).

conclusionStarting 12-18 months before PDAC diagnosis, progressive and increasingly frequent changes occur on CT scans. Resection of PDAC at the time of pre-diagnostic CT changes is likely to provide survival benefit beyond lead time.

Indexed as

AgedAged, 80 and overCarcinoma, Pancreatic DuctalCohort StudiesDisease ProgressionEarly DiagnosisFemaleHumansMaleMiddle AgedMultidetector Computed TomographyNeoplasm StagingPancreatic NeoplasmsPredictive Value of TestsPrognosisRetrospective StudiesCT timelineEarly detectionLead timePancreatic ductal adenocarcinoma

Identifiers

PMID32950386
PMCPMC13250856
OpenAlexW3048409291

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.