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Abbas SH, Ceresa CDL, Hodson L, Nasralla D, Watson CJE, Mergental H, Coussios C, Kaloyirou F, Brusby K, Mora A, Thomas H, Kounali D, Keen K, Pollok JM, Gaurav R, Iype S, Jassem W, Perera MTP, Hakeem AR, Knight S, Friend PJ. Defatting of donor transplant livers during normothermic perfusion-a randomised clinical trial: study protocol for the DeFat study. Trials 2024; 25:386. [PMID: 38886851 PMCID: PMC11181618 DOI: 10.1186/s13063-024-08189-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 05/22/2024] [Indexed: 06/20/2024] Open
Abstract
BACKGROUND Liver disease is the third leading cause of premature death in the UK. Transplantation is the only successful treatment for end-stage liver disease but is limited by a shortage of suitable donor organs. As a result, up to 20% of patients on liver transplant waiting lists die before receiving a transplant. A third of donated livers are not suitable for transplant, often due to steatosis. Hepatic steatosis, which affects 33% of the UK population, is strongly associated with obesity, an increasing problem in the potential donor pool. We have recently tested defatting interventions during normothermic machine perfusion (NMP) in discarded steatotic human livers that were not transplanted. A combination of therapies including forskolin (NKH477) and L-carnitine to defat liver cells and lipoprotein apheresis filtration were investigated. These interventions resulted in functional improvement during perfusion and reduced the intrahepatocellular triglyceride (IHTG) content. We hypothesise that defatting during NMP will allow more steatotic livers to be transplanted with improved outcomes. METHODS In the proposed multi-centre clinical trial, we will randomly assign 60 livers from donors with a high-risk of hepatic steatosis to either NMP alone or NMP with defatting interventions. We aim to test the safety and feasibility of the defatting intervention and will explore efficacy by comparing ex-situ and post-reperfusion liver function between the groups. The primary endpoint will be the proportion of livers that achieve predefined functional criteria during perfusion which indicate potential suitability for transplantation. These criteria reflect hepatic metabolism and injury and include lactate clearance, perfusate pH, glucose metabolism, bile composition, vascular flows and transaminase levels. Clinical secondary endpoints will include proportion of livers transplanted in the two arms, graft function; cell-free DNA (cfDNA) at follow-up visits; patient and graft survival; hospital and ITU stay; evidence of ischemia-reperfusion injury (IRI); non-anastomotic biliary strictures and recurrence of steatosis (determined on MRI at 6 months). DISCUSSION This study explores ex-situ pharmacological optimisation of steatotic donor livers during NMP. If the intervention proves effective, it will allow the safe transplantation of livers that are currently very likely to be discarded, thereby reducing waiting list deaths. TRIAL REGISTRATION ISRCTN ISRCTN14957538. Registered in October 2022.
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Affiliation(s)
- Syed Hussain Abbas
- Nuffield Department of Surgical Sciences, University of Oxford, The Churchill Hospital, Oxford, OX3 7LJ, UK.
| | - Carlo D L Ceresa
- Royal Free London NHS Foundation Trust, The Royal Free Hospital, Pond St, Hampstead, London, NW3 2QG, UK
| | - Leanne Hodson
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, The Churchill Hospital, Oxford, OX3 7LJ, UK
| | - David Nasralla
- Royal Free London NHS Foundation Trust, The Royal Free Hospital, Pond St, Hampstead, London, NW3 2QG, UK
| | - Christopher J E Watson
- Department of Surgery, Addenbrooke's Hospital, Hills Road, University of Cambridge, Box 202, Cambridge, CB2 2QQ, UK
| | - Hynek Mergental
- Queen Elizabeth Hospital, University Hospitals Birmingham NHS Foundation Trust, Mindelsohn Way, Birmingham, B15 2TH, UK
- TransMedics Inc, 200 Minuteman Road, Andover, MA, 01810, USA
| | - Constantin Coussios
- Institute of Biomedical Engineering, Old Road Campus Research Building, University of Oxford, Oxford, OX3 7DQ, UK
| | | | | | - Ana Mora
- Victor Phillip Dahdaleh Heart and Lung Research Institute, University of Cambridge, Cambridge Biomedical Campus, Hills Road, Cambridge, CB2 0BB, UK
| | - Helen Thomas
- NHS Blood and Transplant Clinical Trials Unit, Fox Den Road, Stoke Gifford, Bristol, BS34 8RR, UK
| | - Daphne Kounali
- Oxford Clinical Trials Research Unit (OCTRU), Centre for Statistics in Medicine (CSM), Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS), Medical Sciences Division, The Botnar Research Centre, University of Oxford, Windmill Road, Oxford, OX3 7LD, UK
| | - Katie Keen
- NHSBT CTU, Long Road, Cambridge, CB2 0PT, UK
| | - Joerg-Matthias Pollok
- Royal Free London NHS Foundation Trust, The Royal Free Hospital, Pond St, Hampstead, London, NW3 2QG, UK
| | - Rohit Gaurav
- Department of Surgery, Addenbrooke's Hospital, Hills Road, University of Cambridge, Box 202, Cambridge, CB2 2QQ, UK
| | - Satheesh Iype
- Royal Free London NHS Foundation Trust, The Royal Free Hospital, Pond St, Hampstead, London, NW3 2QG, UK
| | - Wayel Jassem
- Kings College Hospital, King's College Hospital NHS Foundation Trust, Denmark Hill, London, SE5 9RS, UK
| | - M Thamara Pr Perera
- Queen Elizabeth Hospital, University Hospitals Birmingham NHS Foundation Trust, Mindelsohn Way, Birmingham, B15 2TH, UK
| | - Abdul Rahman Hakeem
- Kings College Hospital, King's College Hospital NHS Foundation Trust, Denmark Hill, London, SE5 9RS, UK
- St James's University Hospital, Leeds Teaching Hospitals NHS Trust, Beckett Street, Leeds, LS9 7TF, UK
| | - Simon Knight
- Nuffield Department of Surgical Sciences, University of Oxford, The Churchill Hospital, Oxford, OX3 7LJ, UK
| | - Peter J Friend
- Nuffield Department of Surgical Sciences, University of Oxford, The Churchill Hospital, Oxford, OX3 7LJ, UK
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Trivedi PJ, Arndtz K, Abbas N, Telford A, Young L, Banerjee R, Eddowes P, Jhaveri KS, Hirschfield GM. Quantitative MRCP and metrics of bile duct disease over time in patients with primary sclerosing cholangitis: A prospective study. Aliment Pharmacol Ther 2024; 59:1366-1375. [PMID: 38571284 DOI: 10.1111/apt.17944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/13/2024] [Accepted: 02/28/2024] [Indexed: 04/05/2024]
Abstract
BACKGROUND Imaging markers of biliary disease in primary sclerosing cholangitis (PSC) have potential for use in clinical and trial disease monitoring. Herein, we evaluate how quantitative magnetic resonance cholangiopancreatography (MRCP) metrics change over time, as per the natural history of disease. METHODS Individuals with PSC were prospectively scanned using non-contrast MRCP. Quantitative metrics were calculated using MRCP+ post-processing software to assess duct diameters and dilated and strictured regions. Additionally, a hepatopancreatobiliary radiologist (blinded to clinical details, biochemistry and quantitative biliary metrics) reported each scan, including ductal disease assessment according to the modified Amsterdam Cholangiographic Score (MAS). RESULTS At baseline, 14 quantitative MRCP+ metrics were found to be significantly different in patients with PSC (N = 55) compared to those with primary biliary cholangitis (N = 55), autoimmune hepatitis (N = 57) and healthy controls (N = 18). In PSC specifically, baseline metrics quantifying the number of strictures and the number and length of bile ducts correlated with the MAS, transient elastography and serum ALP values (p < 0.01 for all correlations). Over a median 371-day follow-up (range: 364-462), 29 patients with PSC underwent repeat MRCP, of whom 15 exhibited quantitative changes in MRCP+ metrics. Compared to baseline, quantitative MRCP+ identified an increasing number of strictures over time (p < 0.05). Comparatively, no significant differences in biochemistry, elastography or the MAS were observed between timepoints. Quantitative MRCP+ metrics remained stable in non-PSC liver disease. CONCLUSION Quantitative MRCP+ identifies changes in ductal disease over time in PSC, despite stability in biochemistry, liver stiffness and radiologist-derived cholangiographic assessment (trial registration: ISRCTN39463479).
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Affiliation(s)
- Palak J Trivedi
- National Institute for Health and Care Research (NIHR) Birmingham Biomedical Research Centre, Centre for Liver and Gastrointestinal Research and Gastrointestinal Research, National Institute of Health Research (NIHR) Birmingham Biomedical Research Centre (BRC), University of Birmingham, Birmingham, UK
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
- Liver Unit, University Hospitals Birmingham Queen Elizabeth, Birmingham, UK
- Institute of Applied Health Research, University of Birmingham, Birmingham, UK
| | - Katherine Arndtz
- National Institute for Health and Care Research (NIHR) Birmingham Biomedical Research Centre, Centre for Liver and Gastrointestinal Research and Gastrointestinal Research, National Institute of Health Research (NIHR) Birmingham Biomedical Research Centre (BRC), University of Birmingham, Birmingham, UK
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
- Liver Unit, University Hospitals Birmingham Queen Elizabeth, Birmingham, UK
- Institute of Applied Health Research, University of Birmingham, Birmingham, UK
| | - Nadir Abbas
- National Institute for Health and Care Research (NIHR) Birmingham Biomedical Research Centre, Centre for Liver and Gastrointestinal Research and Gastrointestinal Research, National Institute of Health Research (NIHR) Birmingham Biomedical Research Centre (BRC), University of Birmingham, Birmingham, UK
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
- Liver Unit, University Hospitals Birmingham Queen Elizabeth, Birmingham, UK
| | | | | | | | - Peter Eddowes
- National Institute for Health and Care Research (NIHR) Birmingham Biomedical Research Centre, Centre for Liver and Gastrointestinal Research and Gastrointestinal Research, National Institute of Health Research (NIHR) Birmingham Biomedical Research Centre (BRC), University of Birmingham, Birmingham, UK
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
- NIHR Nottingham BRC, University of Nottingham, Nottingham, UK
- Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Kartik S Jhaveri
- Division of Radiology, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Gideon M Hirschfield
- University Health Network and Department of Medicine, Toronto Centre for Liver Disease, University of Toronto, Toronto, Ontario, Canada
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Ludwig DR, Itani M, Childs DD, Revzin MV, Das KK, Anderson MA, Arif-Tiwari H, Lockhart ME, Fulcher AS. Biliary Duct Dilatation: AJR Expert Panel Narrative Review. AJR Am J Roentgenol 2024; 222:e2329671. [PMID: 37493325 DOI: 10.2214/ajr.23.29671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
Biliary duct dilatation is a common incidental finding in practice, but it is unlikely to indicate biliary obstruction in the absence of clinical symptoms or elevated levels on liver function tests (LFTs). However, the clinical presentation may be nonspecific, and LFTs may either be unavailable or difficult to interpret. The goal of this AJR Expert Panel Narrative Review is to highlight a series of topics fundamental to the management of biliary duct dilatation, providing consensus recommendations in a question-and-answer format. We start by covering a basic approach to interpreting LFT results, the strengths and weaknesses of the biliary imaging modalities, and how and where to measure the extrahepatic bile duct. Next, we define the criteria for biliary duct dilatation, including patients with prior cholecystectomy and advanced age, and discuss when and whether biliary duct dilatation can be attributed to papillary stenosis or sphincter of Oddi dysfunction. Subsequently, we discuss two conditions in which the duct is pathologically dilated but not obstructed: congenital cystic dilatation (i.e., choledochal cyst) and intraductal papillary neoplasm of the bile duct. Finally, we provide guidance regarding when to recommend obtaining additional imaging or testing, such as endoscopic ultrasound or ERCP, and include a discussion of future directions in biliary imaging.
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Affiliation(s)
- Daniel R Ludwig
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 S Kingshighway Blvd, Campus Box 8131, Saint Louis, MO 63110
| | - Malak Itani
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 S Kingshighway Blvd, Campus Box 8131, Saint Louis, MO 63110
| | - David D Childs
- Department of Radiology, Wake Forest University School of Medicine, Winston-Salem, NC
| | | | - Koushik K Das
- Division of Gastroenterology, Washington University School of Medicine, Saint Louis, MO
| | - Mark A Anderson
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Hina Arif-Tiwari
- Department of Radiology, University of Arizona College of Medicine, Tucson, AZ
| | - Mark E Lockhart
- Department of Radiology, The University of Alabama at Birmingham, Birmingham, AL
| | - Ann S Fulcher
- Department of Radiology, Medical College of Virginia/Virginia Commonwealth Medical Center, Richmond, VA
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Cardinale V, Paradiso S, Alvaro D. Biliary stem cells in health and cholangiopathies and cholangiocarcinoma. Curr Opin Gastroenterol 2024; 40:92-98. [PMID: 38320197 DOI: 10.1097/mog.0000000000001005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
PURPOSE OF REVIEW This review discusses evidence regarding progenitor populations of the biliary tree in the tissue regeneration and homeostasis, and the pathobiology of cholangiopathies and malignancies. RECENT FINDINGS In embryogenesis biliary multipotent progenitor subpopulation contributes cells not only to the pancreas and gall bladder but also to the liver. Cells equipped with a constellation of markers suggestive of the primitive endodermal phenotype exist in the peribiliary glands, the bile duct glands, of the intra- and extrahepatic bile ducts. These cells are able to be isolated and cultured easily, which demonstrates the persistence of a stable phenotype during in vitro expansion, the ability to self-renew in vitro, and the ability to differentiate between hepatocyte and biliary and pancreatic islet fates. SUMMARY In normal human livers, stem/progenitors cells are mostly restricted in two distinct niches, which are the bile ductules/canals of Hering and the peribiliary glands (PBGs) present inside the wall of large intrahepatic bile ducts. The existence of a network of stem/progenitor cell niches within the liver and along the entire biliary tree inform a patho-biological-based translational approach to biliary diseases and cholangiocarcinoma since it poses the basis to understand biliary regeneration after extensive or chronic injuries and progression to fibrosis and cancer.
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Affiliation(s)
| | - Savino Paradiso
- Department of Anatomical, Histological, Forensic Medicine and Orthopedics Sciences, Sapienza University of Rome, Rome, Italy
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Vuppalanchi R, Are V, Telford A, Young L, Mouchti S, Ferreira C, Kettler C, Gromski M, Akisik F, Chalasani N. A composite score using quantitative magnetic resonance cholangiopancreatography predicts clinical outcomes in primary sclerosing cholangitis. JHEP Rep 2023; 5:100834. [PMID: 37663118 PMCID: PMC10472223 DOI: 10.1016/j.jhepr.2023.100834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 02/14/2023] [Accepted: 06/16/2023] [Indexed: 09/05/2023] Open
Abstract
Background & Aims Magnetic resonance cholangiopancreatography (MRCP) for evaluation of biliary disease currently relies on subjective assessment with limited prognostic value because of the lack of quantitative metrics. Artificial intelligence-enabled quantitative MRCP (MRCP+) is a novel technique that segments biliary anatomy and provides quantitative biliary tree metrics. This study investigated the utility of MRCP+ as a prognostic tool for the prediction of clinical outcomes in primary sclerosing cholangitis (PSC). Methods MRCP images of patients with PSC were post-processed using MRCP+ software. The duration between the MRCP and clinical event (liver transplantation or death) was calculated. Survival analysis and stepwise Cox regression were performed to investigate the optimal combination of MRCP+ metrics for the prediction of clinical outcomes. The resulting risk score was validated in a separate validation cohort and compared with an existing prognostic score (Mayo risk score). Results In this retrospective study, 102 patients were included in a training cohort and a separate 50 patients formed a validation cohort. Between the two cohorts, 34 patients developed clinical outcomes over a median duration of 3 years (23 liver transplantations and 11 deaths). The proportion of bile ducts with diameter 3-5 mm, total bilirubin, and aspartate aminotransferase were independently associated with transplant-free survival. Combined as a risk score, the overall discriminative performance of the MRCP+ risk score (M+BA) was excellent; area under the receiver operator curve 0.86 (95% CI: 0.77, 0.95) at predicting clinical outcomes in the validation cohort with a hazard ratio 5.8 (95% CI: 1.5, 22.1). This was superior to the Mayo risk score. Conclusions A composite score combining MRCP+ with total bilirubin and aspartate aminotransferase (M+BA) identified PSC patients at high risk of liver transplantation or death. Prospective studies are warranted to evaluate the clinical utility of this novel prognostic tool. Impact and Implications Primary sclerosis cholangitis (PSC) is a disease of the biliary tree where inflammation and fibrosis cause areas of narrowing (strictures) and expansion (dilatations) within the biliary ducts leading to liver failure and/or cancer (cholangiocarcinoma). In this study, we demonstrate that quantitative assessment of the biliary tree can better identify patients with PSC who are at high risk of either death or liver transplantation than a current blood-based risk score (Mayo risk score).
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Affiliation(s)
- Raj Vuppalanchi
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Vijay Are
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, IN, USA
| | | | | | | | | | - Carla Kettler
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Mark Gromski
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Fatih Akisik
- Department of Radiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Naga Chalasani
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, IN, USA
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Zhu J, Wu H, Liu K, Wang D, Guo W, Zhang Z. Diagnostic performance of laparoscopic transcystic common bile duct exploration for the detection of choledocholithiasis in patients with negative MRCP. Updates Surg 2023; 75:1887-1891. [PMID: 37204658 DOI: 10.1007/s13304-023-01524-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 04/29/2023] [Indexed: 05/20/2023]
Abstract
There is little research to evaluate laparoscopic transcystic common bile duct (CBD) exploration (LTCBDE) as a diagnostic test to identify choledocholithiasis undergoing laparoscopic cholecystectomy (LC). This study aimed to assess the technical success and safety of LTCBDE in patients with suspected choledocholithiasis but negative magnetic resonance cholangiopancreatography (MRCP) undergoing LC. We did an ambispective cohort study in patients with gallstones and suspected CBD stones but negative MRCP undergoing LC. The primary outcomes were the rate of complications in the hospital. Between January 2010 and December 2018, 620 patients (median age, 58 years; 58.4% female) were eligible for the study. The success rate of LTCBDE was 91.8% and CBD stones were observed in 53.3% with a stone clearance rate of 99.3%. The overall postoperative complication rate was 0.65% and no death was recorded in the total cohort. Notably, the morbidity in LTCBDE is 0.53%. Retained CBD stones were diagnosed in 2 patients and managed by ERCP successfully. In the LTCBDE cohort, the median duration of operation was 78 (60-100) min and the median postoperative hospital stay was 1 (1-2) days. Overall, at a mean follow-up of 4.1 (2.3-6.1) years, recurrent CBD stones occurred in 1.1% and all-cause mortality in 0.6%. LTCBDE should be considered the favored choice in the diagnostic algorithm for patients with suspected choledocholithiasis but negative MRCP undergoing LC.
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Affiliation(s)
- Jiegao Zhu
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, 95 Yong'an Road, Xi-Cheng District, Beijing, 100050, China.
- National Clinical Research Center for Digestive Diseases, Beijing, China.
| | - Hongwei Wu
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, 95 Yong'an Road, Xi-Cheng District, Beijing, 100050, China
- National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Kun Liu
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, 95 Yong'an Road, Xi-Cheng District, Beijing, 100050, China
- National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Dong Wang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, 95 Yong'an Road, Xi-Cheng District, Beijing, 100050, China
- National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Wei Guo
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, 95 Yong'an Road, Xi-Cheng District, Beijing, 100050, China.
- National Clinical Research Center for Digestive Diseases, Beijing, China.
| | - Zhongtao Zhang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, 95 Yong'an Road, Xi-Cheng District, Beijing, 100050, China
- National Clinical Research Center for Digestive Diseases, Beijing, China
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Murphy PM. Visual Image Annotation for Bowel Obstruction: Repeatability and Agreement with Manual Annotation and Neural Networks. J Digit Imaging 2023; 36:2179-2193. [PMID: 37278918 PMCID: PMC10502000 DOI: 10.1007/s10278-023-00825-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 03/21/2023] [Accepted: 03/29/2023] [Indexed: 06/07/2023] Open
Abstract
Bowel obstruction is a common cause of acute abdominal pain. The development of algorithms for automated detection and characterization of bowel obstruction on CT has been limited by the effort required for manual annotation. Visual image annotation with an eye tracking device may mitigate that limitation. The purpose of this study is to assess the agreement between visual and manual annotations for bowel segmentation and diameter measurement, and to assess agreement with convolutional neural networks (CNNs) trained using that data. Sixty CT scans of 50 patients with bowel obstruction from March to June 2022 were retrospectively included and partitioned into training and test data sets. An eye tracking device was used to record 3-dimensional coordinates within the scans, while a radiologist cast their gaze at the centerline of the bowel, and adjusted the size of a superimposed ROI to approximate the diameter of the bowel. For each scan, 59.4 ± 15.1 segments, 847.9 ± 228.1 gaze locations, and 5.8 ± 1.2 m of bowel were recorded. 2d and 3d CNNs were trained using this data to predict bowel segmentation and diameter maps from the CT scans. For comparisons between two repetitions of visual annotation, CNN predictions, and manual annotations, Dice scores for bowel segmentation ranged from 0.69 ± 0.17 to 0.81 ± 0.04 and intraclass correlations [95% CI] for diameter measurement ranged from 0.672 [0.490-0.782] to 0.940 [0.933-0.947]. Thus, visual image annotation is a promising technique for training CNNs to perform bowel segmentation and diameter measurement in CT scans of patients with bowel obstruction.
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Affiliation(s)
- Paul M Murphy
- University of California-San Diego, 9500 Gilman Dr, 92093, La Jolla, CA, USA.
- UCSD Radiology, 200 W Arbor Dr, 92103, San Diego, CA, USA.
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8
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Beyer G, Kasprowicz F, Hannemann A, Aghdassi A, Thamm P, Volzke H, Lerch MM, Kühn JP, Mayerle J. Definition of age-dependent reference values for the diameter of the common bile duct and pancreatic duct on MRCP: a population-based, cross-sectional cohort study. Gut 2023; 72:1738-1744. [PMID: 36828626 PMCID: PMC10423481 DOI: 10.1136/gutjnl-2021-326106] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 02/13/2023] [Indexed: 02/26/2023]
Abstract
OBJECTIVE Changes of the pancreaticobiliary ducts herald disease. Magnetic resonance cholangiopancreatography (MRCP) allows accurate duct visualisation. Data on reliable upper reference ranges are missing. DESIGN Cross-sectional whole body MRI data from the population-based Study of Health in Pomerania were analysed. The width of the common bile duct (CBD) and the pancreatic duct (PD) was determined. We aimed to describe the distribution of physiological duct diameters on MRCP in a population of healthy subjects and to identify factors influencing duct size. RESULTS After excluding pre-existing pancreaticobiliary conditions, CBD and PD diameters from 938 and 774 healthy individuals, respectively, showed a significant increase with age (p<0.0001) and exceeded the conventional upper reference limit of normal in 10.9% and 18.2%, respectively. Age-dependent upper reference limits of duct diameters were delineated with non-parametric quantile regression, defined as 95th percentile: for CBD up to 8 mm in subjects <65 years and up to 11 mm in subjects ≥65 years. For the PD reference diameters were up to 3 mm in subjects <65 years and up to 4 mm in subjects ≥65 years. CONCLUSIONS This is the first population-based study delineating age-adjusted upper reference limits of CBD and PD on MRCP. We showed that up to 18.2% of healthy volunteers would have needed diagnostic workup, if the conventional reference values were used. The utilisation of the adapted reference levels may help to avoid unnecessary investigations and thus to reduce healthcare expenditure and test-related adverse events.
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Affiliation(s)
- Georg Beyer
- Department of Medicine II, University Hospital, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Florian Kasprowicz
- Department of Medicine II, University Hospital, Ludwig-Maximilians-University Munich, Munich, Germany
- Department of Medicine A, University Medicine Greifswald, Greifswald, Mecklenburg-Vorpommern, Germany
| | - Anke Hannemann
- Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Greifswald, Mecklenburg-Vorpommern, Germany
- Partner Site Greifswald, German Centre for Cardiovascular Research (DZHK), Greifswald, Germany
| | - Ali Aghdassi
- Department of Medicine A, University Medicine Greifswald, Greifswald, Mecklenburg-Vorpommern, Germany
| | - Patrick Thamm
- Institute of Diagnostic Radiology and Neuroradiology, University Medicine Greifswald, Greifswald, Mecklenburg-Vorpommern, Germany
| | - Henry Volzke
- Partner Site Greifswald, German Centre for Cardiovascular Research (DZHK), Greifswald, Germany
- Institute for Community Medicine, Clinical Epidemiology, University Medicine Greifswald, Greifswald, Mecklenburg-Vorpommern, Germany
| | - Markus M Lerch
- Department of Medicine A, University Medicine Greifswald, Greifswald, Mecklenburg-Vorpommern, Germany
- University Hospital, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Jens-Peter Kühn
- Institute of Diagnostic Radiology and Neuroradiology, University Medicine Greifswald, Greifswald, Mecklenburg-Vorpommern, Germany
- Institute and Policlinic of Diagnostic and Interventional Radiology, Medical University, Carl-Gustav-Carus, Dresden, Sachsen, Germany
| | - Julia Mayerle
- Department of Medicine II, University Hospital, Ludwig-Maximilians-University Munich, Munich, Germany
- Department of Medicine A, University Medicine Greifswald, Greifswald, Mecklenburg-Vorpommern, Germany
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Lobig F, Subramanian D, Blankenburg M, Sharma A, Variyar A, Butler O. To pay or not to pay for artificial intelligence applications in radiology. NPJ Digit Med 2023; 6:117. [PMID: 37353531 DOI: 10.1038/s41746-023-00861-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 06/09/2023] [Indexed: 06/25/2023] Open
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Cristoferi L, Porta M, Bernasconi DP, Leonardi F, Gerussi A, Mulinacci G, Palermo A, Gallo C, Scaravaglio M, Stucchi E, Maino C, Ippolito D, D'Amato D, Ferreira C, Nardi A, Banerjee R, Valsecchi MG, Antolini L, Corso R, Sironi S, Fagiuoli S, Invernizzi P, Carbone M. A quantitative MRCP-derived score for medium-term outcome prediction in primary sclerosing cholangitis. Dig Liver Dis 2023; 55:373-380. [PMID: 36357293 DOI: 10.1016/j.dld.2022.10.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 10/21/2022] [Accepted: 10/21/2022] [Indexed: 11/09/2022]
Abstract
BACKGROUND Magnetic resonance cholangiopancreatography (MRCP) is the gold standard for diagnosis of patients with primary sclerosing cholangitis (PSC). The semi-quantitative MRCP-derived Anali scores proposed for risk stratification, have poor-to-moderate inter-reader agreement. AIMS To evaluate the prognostic performance of quantitative MRCP metrics in PSC. METHODS This is a retrospective study of PSC patients undergoing MRCP. Images were processed using MRCP+ software (Perspectum Ltd, Oxford) that provides quantitative biliary features, semi-automatically extracted by artificial intelligence-driven analysis of MRCP-3D images. The prognostic value of biliary features has been assessed for all hepato-biliary complications. RESULTS 87 PSC patients have been included in the analysis. Median follow-up from MRCP to event/censoring of 30.9 months (Q1-Q3=13.6-46.6). An adverse outcome occurred in 27 (31.0%) patients. The number of biliary strictures (HR=1.05 per unit, 95%CI 1.02-1.08, p < 0.0001), spleen length (HR=1.16 per cm, 95%CI 1.01-1.34, p = 0.039), adjusted for height, age at MRCP, and time from diagnosis to MRCP predicted higher risk of hepatobiliary complications. These were incorporated into a the quantitative MRCP-derived PSC (qMRCP-PSC) score (C-statistic=0.80). After 3-fold cross-validation, qMRCP-PSC outperformed the Anali score in our cohort (C-statistic of 0.78 vs 0.64) and enabled the discrimination of survival of PSC patients (log-rank p < 0.0001). CONCLUSIONS The qMRCP-PSC score identified patients at higher risk of hepatobiliary complications and outperformed the available radiological scores. It represents a novel quantitative biomarker for disease monitoring and a potential surrogate endpoint for clinical trials.
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Affiliation(s)
- Laura Cristoferi
- Division of Gastroenterology, Centre for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, Monza, MB 20900, Italy; European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, Via Gian Battista Pergolesi 33, Monza 20900, Italy; Bicocca Bioinformatics Biostatistics and Bioimaging Centre-B4, School of Medicine and Surgery, University of Milan-Bicocca, Via Cadore 48, Monza, MB 20900, Italy
| | - Marco Porta
- Department of Diagnostic Radiology, San Gerardo Hospital, ASST Monza, Via Gian Battista Pergolesi 33, Monza, MB 20900, Italy
| | - Davide Paolo Bernasconi
- Bicocca Bioinformatics Biostatistics and Bioimaging Centre-B4, School of Medicine and Surgery, University of Milan-Bicocca, Via Cadore 48, Monza, MB 20900, Italy
| | - Filippo Leonardi
- Gastroenterology Hepatology and Transplantation Unit, ASST Papa Giovanni XXIII, piazza OMS, 1, Bergamo, BG 24127, Italy
| | - Alessio Gerussi
- Division of Gastroenterology, Centre for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, Monza, MB 20900, Italy; European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, Via Gian Battista Pergolesi 33, Monza 20900, Italy
| | - Giacomo Mulinacci
- Division of Gastroenterology, Centre for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, Monza, MB 20900, Italy; European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, Via Gian Battista Pergolesi 33, Monza 20900, Italy
| | - Andrea Palermo
- Division of Gastroenterology, Centre for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, Monza, MB 20900, Italy; European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, Via Gian Battista Pergolesi 33, Monza 20900, Italy
| | - Camilla Gallo
- Division of Gastroenterology, Centre for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, Monza, MB 20900, Italy; European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, Via Gian Battista Pergolesi 33, Monza 20900, Italy
| | - Miki Scaravaglio
- Division of Gastroenterology, Centre for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, Monza, MB 20900, Italy; European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, Via Gian Battista Pergolesi 33, Monza 20900, Italy
| | - Eliana Stucchi
- Division of Gastroenterology, Centre for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, Monza, MB 20900, Italy; European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, Via Gian Battista Pergolesi 33, Monza 20900, Italy
| | - Cesare Maino
- Department of Diagnostic Radiology, San Gerardo Hospital, ASST Monza, Via Gian Battista Pergolesi 33, Monza, MB 20900, Italy
| | - Davide Ippolito
- Department of Diagnostic Radiology, San Gerardo Hospital, ASST Monza, Via Gian Battista Pergolesi 33, Monza, MB 20900, Italy; School of Medicine, University of Milano-Bicocca, via Cadore 48, Monza, MB 20900, Italy
| | - Daphne D'Amato
- Division of Gastroenterology, Centre for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, Monza, MB 20900, Italy; European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, Via Gian Battista Pergolesi 33, Monza 20900, Italy
| | - Carlos Ferreira
- Perspectum Ltd, Gemini One, 5520 John Smith Dr, Oxford OX4 2LL, United Kingdom
| | - Alessandra Nardi
- Department of Mathematics, University of Rome Tor Vergata, Via della Ricerca Scientifica, 1, Roma, RM 00133, Italy
| | - Rajarshi Banerjee
- Perspectum Ltd, Gemini One, 5520 John Smith Dr, Oxford OX4 2LL, United Kingdom
| | - Maria Grazia Valsecchi
- Bicocca Bioinformatics Biostatistics and Bioimaging Centre-B4, School of Medicine and Surgery, University of Milan-Bicocca, Via Cadore 48, Monza, MB 20900, Italy
| | - Laura Antolini
- Bicocca Bioinformatics Biostatistics and Bioimaging Centre-B4, School of Medicine and Surgery, University of Milan-Bicocca, Via Cadore 48, Monza, MB 20900, Italy
| | - Rocco Corso
- Department of Diagnostic Radiology, San Gerardo Hospital, ASST Monza, Via Gian Battista Pergolesi 33, Monza, MB 20900, Italy
| | - Sandro Sironi
- Department of Radiology, ASST Papa Giovanni XXIII, piazza OMS, 1, Bergamo, BG 24127, Italy; School of Medicine, University of Milano-Bicocca, via Cadore 48, Monza, MB 20900, Italy
| | - Stefano Fagiuoli
- Gastroenterology Hepatology and Transplantation Unit, ASST Papa Giovanni XXIII, piazza OMS, 1, Bergamo, BG 24127, Italy
| | - Pietro Invernizzi
- Division of Gastroenterology, Centre for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, Monza, MB 20900, Italy; European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, Via Gian Battista Pergolesi 33, Monza 20900, Italy
| | - Marco Carbone
- Division of Gastroenterology, Centre for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, Monza, MB 20900, Italy; European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, Via Gian Battista Pergolesi 33, Monza 20900, Italy.
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11
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Gerussi A, Scaravaglio M, Cristoferi L, Verda D, Milani C, De Bernardi E, Ippolito D, Asselta R, Invernizzi P, Kather JN, Carbone M. Artificial intelligence for precision medicine in autoimmune liver disease. Front Immunol 2022; 13:966329. [PMID: 36439097 PMCID: PMC9691668 DOI: 10.3389/fimmu.2022.966329] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 10/13/2022] [Indexed: 09/10/2023] Open
Abstract
Autoimmune liver diseases (AiLDs) are rare autoimmune conditions of the liver and the biliary tree with unknown etiology and limited treatment options. AiLDs are inherently characterized by a high degree of complexity, which poses great challenges in understanding their etiopathogenesis, developing novel biomarkers and risk-stratification tools, and, eventually, generating new drugs. Artificial intelligence (AI) is considered one of the best candidates to support researchers and clinicians in making sense of biological complexity. In this review, we offer a primer on AI and machine learning for clinicians, and discuss recent available literature on its applications in medicine and more specifically how it can help to tackle major unmet needs in AiLDs.
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Affiliation(s)
- Alessio Gerussi
- Division of Gastroenterology, Center for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, Monza, Italy
| | - Miki Scaravaglio
- Division of Gastroenterology, Center for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, Monza, Italy
| | - Laura Cristoferi
- Division of Gastroenterology, Center for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, Monza, Italy
- Bicocca Bioinformatics Biostatistics and Bioimaging Centre - B4, School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | | | - Chiara Milani
- Division of Gastroenterology, Center for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, Monza, Italy
| | - Elisabetta De Bernardi
- Department of Medicine and Surgery and Tecnomed Foundation, University of Milano - Bicocca, Monza, Italy
| | | | - Rosanna Asselta
- Humanitas Clinical and Research Center, Rozzano, Milan, Italy
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
| | - Pietro Invernizzi
- Division of Gastroenterology, Center for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, Monza, Italy
| | - Jakob Nikolas Kather
- Department of Medicine III, University Hospital RWTH Aachen, Aachen, Germany
- Else Kroener Fresenius Center for Digital Health, Medical Faculty Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - Marco Carbone
- Division of Gastroenterology, Center for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, Monza, Italy
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12
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NANASHIMA ATSUSHI, KOMI MASANORI, IMAMURA NAOYA, HIYOSHI MASAHIDE, HAMADA TAKEOMI, TSUCHIMOCHI YUUKI, ICHIKI NOBUHIKO, ENZAKI MASAHIRO, AZUMA MINAKO. Novel Mathematical Diagnostic Analysis of Malignant Biliary Stenosis Using Magnetic Resonance Cholangiography in Patients Undergoing Pancreaticoduodenectomy. CANCER DIAGNOSIS & PROGNOSIS 2022; 2:668-680. [PMID: 36340462 PMCID: PMC9628152 DOI: 10.21873/cdp.10158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 07/27/2022] [Indexed: 11/11/2022]
Abstract
BACKGROUND/AIM A novel mathematical diagnostic analysis using Fourier transform (FT) algorithm of the extrahepatic bile duct (BD) using magnetic resonance-cholangiography (MRC) was performed to evaluate irregularities of the bile duct lumen indicating BD cancer (BDC) extension compared to pancreatic head malignancies controls. PATIENTS AND METHODS BD lumen was automatically traced, and a 2D-diagram cross-section was measured and a FT-based integrated-power-spectral-density-function value (FTV) of both diameter and area (mm 2 and mm 4 /Hz) was calculated for cancerous and non-cancerous parts utilizing a computer workstation. RESULTS FT analysis that was achieved in 59 patients consisted of BDC in 31, pancreatic cancer with biliary stenosis (PC) in 10 and pancreatic neoplasm without stenosis (PN) in 18. FTV-diameter and -area of non-tumorous proximal BD were larger compared to tumor involving BD (p<0.01), and those of the entire BD in BDCs were significantly larger than those in PN (p<0.01). FTV-diameter and -area in proximal BDC-positive were smaller than those in BDC-negative (p<0.05). BDC part was significantly discriminated by the cutoff value (286 mm 2 Hz -1 in diameter and 10,311 mm 4 Hz -1 in area) compared to PC and diagnostic accuracy was over 70% (p<0.01). CONCLUSION Novel mathematical MRC FT-analysis is promising for differentiating between BDC and PC with biliary stenosis and can be utilized as an objective diagnostic tool in the future.
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Affiliation(s)
- ATSUSHI NANASHIMA
- Division of Hepato-biliary-pancreas Surgery, Department of Surgery, University of Miyazaki Faculty of Medicine, Miyazaki, Japan
| | - MASANORI KOMI
- Division of Radiology, Miyazaki University Hospital, Miyazaki, Japan
| | - NAOYA IMAMURA
- Division of Hepato-biliary-pancreas Surgery, Department of Surgery, University of Miyazaki Faculty of Medicine, Miyazaki, Japan
| | - MASAHIDE HIYOSHI
- Division of Hepato-biliary-pancreas Surgery, Department of Surgery, University of Miyazaki Faculty of Medicine, Miyazaki, Japan
| | - TAKEOMI HAMADA
- Division of Hepato-biliary-pancreas Surgery, Department of Surgery, University of Miyazaki Faculty of Medicine, Miyazaki, Japan
| | - YUUKI TSUCHIMOCHI
- Division of Hepato-biliary-pancreas Surgery, Department of Surgery, University of Miyazaki Faculty of Medicine, Miyazaki, Japan
| | - NOBUHIKO ICHIKI
- Division of Hepato-biliary-pancreas Surgery, Department of Surgery, University of Miyazaki Faculty of Medicine, Miyazaki, Japan
| | - MASAHIRO ENZAKI
- Division of Radiology, Miyazaki University Hospital, Miyazaki, Japan
| | - MINAKO AZUMA
- Department of Radiology, University of Miyazaki Faculty of Medicine, Miyazaki, Japan
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13
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Chazouilleres O, Beuers U, Bergquist A, Karlsen TH, Levy C, Samyn M, Schramm C, Trauner M. EASL Clinical Practice Guidelines on sclerosing cholangitis. J Hepatol 2022; 77:761-806. [PMID: 35738507 DOI: 10.1016/j.jhep.2022.05.011] [Citation(s) in RCA: 83] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 05/16/2022] [Indexed: 02/07/2023]
Abstract
Management of primary or secondary sclerosing cholangitis is challenging. These Clinical Practice Guidelines have been developed to provide practical guidance on debated topics including diagnostic methods, prognostic assessment, early detection of complications, optimal care pathways and therapeutic (pharmacological, endoscopic or surgical) options both in adults and children.
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14
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Quantitative magnetic resonance cholangiopancreatography metrics are associated with disease severity and outcomes in patients with primary sclerosing cholangitis. JHEP Rep 2022; 4:100577. [PMID: 36277957 PMCID: PMC9579413 DOI: 10.1016/j.jhepr.2022.100577] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 07/13/2022] [Accepted: 08/22/2022] [Indexed: 11/20/2022] Open
Abstract
Background & Aims People with primary sclerosing cholangitis (PSC) have a variable and often progressive disease course that is associated with biliary and parenchymal changes. These changes are typically assessed by magnetic resonance imaging (MRI), including qualitative assessment of magnetic resonance cholangiopancreatography (MRCP). Our aim was to study the association of novel objective quantitative MRCP metrics with prognostic scores and patient outcomes. Methods We performed a retrospective study including 77 individuals with large-duct PSC with baseline MRCP images, which were postprocessed to obtain quantitative measures of bile ducts using MRCP+™. The participants’ ANALI scores, liver stiffness by vibration-controlled transient elastography, and biochemical indices were collected at baseline. Adverse outcome-free survival was measured as the absence of decompensated cirrhosis, liver transplantation (LT), or liver-related death over a 12-year period. The prognostic value of MRCP+-derived metrics was assessed by Cox regression modelling. Results During a total of 386 patients-years, 16 cases of decompensation, 2 LTs, and 5 liver-related deaths were recorded. At baseline, around 50% of the patients were classified as being at risk of developing disease complications. MRCP+ metrics, particularly those describing the severity of bile duct dilatations, were correlated with all prognostic factors. Univariate analysis showed that MRCP+ metrics representing duct diameter, dilatations, and the percentage of ducts with strictures and/or dilatations were associated with survival. In a multivariable-adjusted analysis, the median duct diameter was significantly associated with survival (hazard ratio 10.9, 95% CI 1.3–90.3). Conclusions MRCP+ metrics in people with PSC correlate with biochemical, elastographic, and radiological prognostic scores and are predictive of adverse outcome-free survival. Lay summary In this study, we assessed in people with primary sclerosing cholangitis (PSC) the association of novel objective quantitative MRCP metrics automatically provided by a software tool (MRCP+) with prognostic scores and patient outcomes. We observed that MRCP+ metrics in people with PSC correlate with biochemical, elastographic, and radiological prognostic scores and are predictive of adverse outcome-free survival. The association of quantitative MRCP+ biliary metrics with PSC severity and prognosis is still unknown. MRCP+ biliary metrics in PSC are correlated with prognostic factors (LSM, Mayo score, AOM, and MRI scores). MRCP+ biliary metrics are independently associated with prognosis in PSC.
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15
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Quantitative MR in Paediatric Patients with Wilson Disease: A Case Series Review. CHILDREN 2022; 9:children9050613. [PMID: 35626790 PMCID: PMC9139168 DOI: 10.3390/children9050613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/01/2022] [Accepted: 04/23/2022] [Indexed: 11/23/2022]
Abstract
Wilson disease (WD) is a liver disorder characterized by improper copper metabolism. Although non-invasive tools are currently used to support diagnosis and management, this is still an area of unmet need, as patients present with a wide range of symptoms. Our aim was to investigate the potential utility of multiparametric magnetic resonance imaging (mpMRI) and quantitative magnetic resonance cholangiopancreatography (MRCP+) to support patient management. MRI examinations of 7 children and young adults aged 8–16 years (six at diagnosis) were performed alongside a standard of care clinical and histological examination. Images were quantitatively analyzed to derive metrics of liver (corrected T1 (cT1; fibro-inflammation), MR liver fat (proton density fat fraction; PDFF)), and biliary health (MRCP+). MRI–PDFF provided a more dynamic characterization of fat compared with that provided by ultrasound. Those with elevated histological scores of fibrosis, inflammation, and steatosis had elevated mpMRI values. MRCP+ managed to identify dilatations in the biliary tree which were not observed during the standard of care examination. mpMRI and MRCP+ metrics show early promise as markers to assess both liver and biliary health in Wilson disease. Investigations to understand and explore the utility of these markers are warranted and should be performed.
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16
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Mahalingam N, Ralli GP, Trout AT, Dillman JR. Comparison of quantitative 3D magnetic resonance cholangiography measurements obtained using three different image acquisition methods. Abdom Radiol (NY) 2022; 47:196-208. [PMID: 34729626 DOI: 10.1007/s00261-021-03330-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 10/18/2021] [Accepted: 10/19/2021] [Indexed: 11/29/2022]
Abstract
PURPOSE To compare quantitative biliary measurements obtained with three different magnetic resonance cholangiopancreatography (MRCP) acquisition methods. METHODS This retrospective study was IRB-approved. Patients with combinations of clinically indicated 3D FSE MRCP with sensitivity encoding (SENSE), 3D FSE SENSE MRCP with compressed sensing (CS-FSE; acceleration factor 8), and 3D gradient and spin-echo (GRASE) MRCP, acquired between October 2018 and March 2020, were included. The MRCP + Tuning Threshold algorithm (Perspectum Ltd., Oxford, UK) was used to segment 3D biliary models from MRCP data, with multiple metrics quantified from the models. Single measure, two-way, mixed-effects intra-class correlations, Bland-Altman analyses, and Wilcoxon signed-rank tests were used to compare quantitative measurements. RESULTS From 160 MRCP datasets (25 3D FSE, 67 3D CS-FSE, 68 3D GRASE) in 69 patients, 48 datasets (7 [28%] 3D FSE, 14 [21%] 3D CS-FSE, 27 [40%] 3D GRASE) failed post-processing due to motion artifacts. The remaining 112 MRCP datasets (18 3D FSE, 53 3D CS-FSE, 41 3D GRASE) from 60 patients were included in the analysis. There was good to excellent agreement between 3D FSE and 3D CS-FSE MRCP for diameter of the left and right hepatic ducts, biliary volume, number and length of ducts, and total length of dilations (ICC: 0.83-0.93). The only metrics that exhibited good agreement between 3D FSE and 3D GRASE MRCP were biliary volume (ICC: 0.75) and total number of dilations (ICC: 0.77). CONCLUSION 3D CS-FSE MRCP produces comparable biliary diameter metrics and global duct quantification to 3D FSE MRCP at a significantly reduced acquisition time.
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Affiliation(s)
- Neeraja Mahalingam
- Department of Radiology, Imaging Research Center, Cincinnati Children's Hospital Medical Center, 250 Albert Sabin Way, Cincinnati, OH, USA.
| | | | - Andrew T Trout
- Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Radiology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Jonathan R Dillman
- Department of Radiology, Imaging Research Center, Cincinnati Children's Hospital Medical Center, 250 Albert Sabin Way, Cincinnati, OH, USA
- Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Radiology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
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17
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Selvaraj EA, Ba-Ssalamah A, Poetter-Lang S, Ridgway GR, Brady JM, Collier J, Culver EL, Bailey A, Pavlides M. A Quantitative Magnetic Resonance Cholangiopancreatography Metric of Intrahepatic Biliary Dilatation Severity Detects High-Risk Primary Sclerosing Cholangitis. Hepatol Commun 2021; 6:795-808. [PMID: 34802195 PMCID: PMC8948671 DOI: 10.1002/hep4.1860] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 10/13/2021] [Accepted: 10/26/2021] [Indexed: 11/23/2022] Open
Abstract
Magnetic resonance imaging with magnetic resonance cholangiopancreatography (MRI‐MRCP) in primary sclerosing cholangitis (PSC) is currently based on qualitative assessment and has high interobserver variability. We investigated the utility and performance of quantitative metrics derived from a three‐dimensional biliary analysis tool in adult patients with PSC. MRI‐MRCP, blood‐based biomarkers, and FibroScan were prospectively performed in 80 participants with large‐duct PSC and 20 healthy participants. Quantitative analysis was performed using MRCP+ (Perspectum Ltd., United Kingdom), and qualitative reads were performed by radiologists. Inter‐reader agreements were compared. Patients were classified into high risk or low risk for disease progression, using Mayo risk score (MRS), Amsterdam‐Oxford model (AOM), upper limit of normal (ULN) alkaline phosphatase (ALP), disease distribution, and presence of dominant stricture. Performance of noninvasive tools was assessed using binomial logistic regressions and receiver operating characteristic curve analyses. Quantitative biliary metrics performed well to distinguish abnormal from normal bile ducts (P < 0.0001). Interobserver agreements for MRCP+ dilatation metrics (intraclass correlation coefficient, 0.90‐0.96) were superior to modified Amsterdam intrahepatic stricture severity score (κ = 0.74) and Anali score (κ = 0.38). MRCP+ intrahepatic dilatation severity showed excellent performance to classify patients into high‐risk and low‐risk groups, using predictors of disease severity as the reference (MRS, P < 0.0001; AOM, P = 0.0017; 2.2 × ULN ALP, P = 0.0007; 1.5 × ULN ALP, P = 0.0225; extrahepatic disease, P = 0.0331; dominant stricture, P = 0.0019). MRCP+ intrahepatic dilatation severity was an independent predictor of MRS >0 (odds ratio, 31.3; P = 0.035) in the multivariate analysis. Conclusion: Intrahepatic biliary dilatation severity calculated using MRCP+ is elevated in patients with high‐risk PSC and may be used as an adjunct for risk stratification in PSC. This exploratory study has provided the groundwork for examining the utility of novel quantitative biliary metrics in multicenter studies.
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Affiliation(s)
- Emmanuel A Selvaraj
- Oxford Centre for Clinical Magnetic Resonance Research, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.,Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom.,National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom.,Oxford University Hospitals National Health Service Foundation Trust, Oxford, United Kingdom
| | - Ahmed Ba-Ssalamah
- Medical University of Vienna, Department of Biomedical Imaging and Image-Guided Therapy, General Hospital of Vienna, Vienna, Austria
| | - Sarah Poetter-Lang
- Medical University of Vienna, Department of Biomedical Imaging and Image-Guided Therapy, General Hospital of Vienna, Vienna, Austria
| | | | - J Michael Brady
- Perspectum Ltd., Oxford, United Kingdom.,Department of Oncology, Medical Sciences Division, University of Oxford, Oxford, United Kingdom
| | - Jane Collier
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Emma L Culver
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom.,National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom.,Oxford University Hospitals National Health Service Foundation Trust, Oxford, United Kingdom
| | - Adam Bailey
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom.,National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom.,Oxford University Hospitals National Health Service Foundation Trust, Oxford, United Kingdom
| | - Michael Pavlides
- Oxford Centre for Clinical Magnetic Resonance Research, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.,Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom.,National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom.,Oxford University Hospitals National Health Service Foundation Trust, Oxford, United Kingdom
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18
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Nanashima A, Komi M, Mavar M, Ferreira C, O'Donoghue P, Goldfinger M, Langford C, Imamura N. A 3D Quantitative MRC Modeling Images Detected Case of Intrahepatic Biliary Stricture Diseases. Case Rep Gastroenterol 2021; 15:680-688. [PMID: 34594166 PMCID: PMC8436615 DOI: 10.1159/000518020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 06/11/2021] [Indexed: 12/12/2022] Open
Abstract
In the future, the application of quantitative imaging and computational analysis will reduce the burden on radiologists. We herein report 8 pilot cases both with and without intrahepatic biliary stricture (IHBS) diseases which have been analyzed with the novel analytical system MRCP+ (Perspectum Ltd., Oxford, UK). The colored and well-visualized 3D models of the entire biliary trees could be obtained in all 8 cases. Three representative cases did not show dilated regions in the intrahepatic bile ducts. Cases diagnosed as a pancreatico-biliary maljunction showed slightly increased dilated visualization in the extrahepatic duct. Except in a case with severe stenosis resulting from hepatolithiasis, the number of visualized intrahepatic bile ducts tended to be decreased and the volume of biliary tree and the total length of stricture and dilatation were also decreased. However, the number of IHBS or dilatation was unchanged. The number of strictures obtained by MRCP+ and the subjective counts of stenosis from a radiologist was not found to be correlated. In a case of severe stenosis at the left lateral bile duct, the number of intrahepatic biliary dilatations was increased. The latest computerized 3D modeling technology was found to be useful in visualizing the alteration of intraluminal diameter of the entire biliary trees at a glance, which can provide the automatic diagnosis of IHBS diseases at an earlier phase.
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Affiliation(s)
- Atsushi Nanashima
- Division of Hepato-Biliary-Pancreas Surgery, Department of Surgery, University of Miyazaki Faculty of Medicine, Miyazaki, Japan
| | - Masanori Komi
- Division of Radiology, Miyazaki University Hospital, Miyazaki, Japan
| | | | | | | | | | | | - Naoya Imamura
- Division of Hepato-Biliary-Pancreas Surgery, Department of Surgery, University of Miyazaki Faculty of Medicine, Miyazaki, Japan
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Nanashima A, Komi M, Imamura N, Yazaki S, Hiyoshi M, Hamada T, Yano K, Nishida T, Enzaki M, Sakae T. Novel analysis using magnetic resonance cholangiography for patients with pancreaticobiliary maljunction. Surg Today 2021; 52:385-394. [PMID: 34324090 DOI: 10.1007/s00595-021-02349-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 06/01/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE We used a novel diagnostic Fourier transform (FT) algorithm of the entire extrahepatic bile duct (EHBD) measured by magnetic resonance cholangiography (MRC) to evaluate subtle deformation of bile duct lumen, indicating the malignant potential of EHBD, in patients with pancreaticobiliary maljunction (PBMJ) and in a comparative group of controls without PBMJ. METHODS From the workstation, the EHBD lumen was traced automatically and a 2D diagram cross section was measured at 0.5 mm-longitudinal intervals. The FT-based integrated power spectral density function value (FTPSDI) of the diameter or area (mm2 or mm4/Hz) and the phase value distribution entropy (PVDE) were also measured. RESULTS There were 16 patients with undilated PBMJ and 7 with dilated PBMJ. The control group comprised 10 patients with a normal bile duct, 20 with bile duct carcinoma (BDC), and 1 with primary sclerosing cholangitis. Both the diameter and area of the dilated bile ducts and the ducts with early- or advanced-stage BDC were significantly greater than those of the normal duct (p < 0.05). The undilated type of PBMJ tended to have a larger FTPSDI diameter than a normal bile duct, which had a smaller diameter than the dilated type of PBMJ or BDC. BDC had a significantly larger FTPSDI diameter (p < 0.05) and the cutoff value for accuracy was 168 mm2 Hz-1. CONCLUSION The novel mathematical FTPSDI is a promising indicator of whether preventive EHBD resection is necessary for patients with PBMJ, which can be widely applied in the early diagnosis of other biliary diseases.
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Affiliation(s)
- Atsushi Nanashima
- Division of Hepato-Biliary-Pancreas Surgery, Department of Surgery, University of Miyazaki Faculty of Medicine, 5200 Kihara, Kiyotake, Miyazaki, 889-1692, Japan.
| | - Masanori Komi
- Division of Radiology, Miyazaki University Hospital, Miyazaki, Japan
| | - Naoya Imamura
- Division of Hepato-Biliary-Pancreas Surgery, Department of Surgery, University of Miyazaki Faculty of Medicine, 5200 Kihara, Kiyotake, Miyazaki, 889-1692, Japan
| | - Shigetoshi Yazaki
- Department of Mathematics, School of Science and Technology, Meiji University, Kanagawa, Japan
| | - Masahide Hiyoshi
- Division of Hepato-Biliary-Pancreas Surgery, Department of Surgery, University of Miyazaki Faculty of Medicine, 5200 Kihara, Kiyotake, Miyazaki, 889-1692, Japan
| | - Takeomi Hamada
- Division of Hepato-Biliary-Pancreas Surgery, Department of Surgery, University of Miyazaki Faculty of Medicine, 5200 Kihara, Kiyotake, Miyazaki, 889-1692, Japan
| | - Koichi Yano
- Division of Hepato-Biliary-Pancreas Surgery, Department of Surgery, University of Miyazaki Faculty of Medicine, 5200 Kihara, Kiyotake, Miyazaki, 889-1692, Japan
| | - Takahiro Nishida
- Division of Hepato-Biliary-Pancreas Surgery, Department of Surgery, University of Miyazaki Faculty of Medicine, 5200 Kihara, Kiyotake, Miyazaki, 889-1692, Japan
| | - Masahiro Enzaki
- Division of Radiology, Miyazaki University Hospital, Miyazaki, Japan
| | - Tatefumi Sakae
- Department of Radiology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
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Quantitative multiparametric MRI as a non-invasive stratification tool in children and adolescents with autoimmune liver disease. Sci Rep 2021; 11:15261. [PMID: 34315985 PMCID: PMC8316432 DOI: 10.1038/s41598-021-94754-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 07/08/2021] [Indexed: 12/12/2022] Open
Abstract
Autoimmune hepatitis (AIH) and autoimmune sclerosing cholangitis (ASC) are two very closely related autoimmune liver diseases with overlapping clinical features and similar management strategies. The purpose of this study was to assess the utility of quantitative imaging markers to distinguish ASC from AIH in paediatrics. 66 participants (N = 52 AIH, N = 14 ASC) aged 14.4 ± 3.3 years scheduled to undergo routine biopsy and baseline serum liver biochemistry testing were invited to undergo MRI (non-contrast abdominal MRI and 3D fast spin-echo MRCP). Multiparametric MRI was used to measure fibro-inflammation with corrected T1 (cT1), while the biliary tree was modelled using quantitative MRCP (MRCP +). Mann–Whitney U tests were performed to compare liver function tests with imaging markers between patient groups (ASC vs AIH). Receiver operating characteristic curves and stepwise logistic regressions were used to identify the best combination of markers to discriminate between ASC and AIH. Correlations between liver function tests and imaging markers were performed using Spearman’s rank correlation. cT1 was significantly correlated with liver function tests (range 0.33 ≤ R ≤ 56, p < 0.05), as well as with fibrosis, lobular and portal inflammation (range 0.31 ≤ R ≤ 42, p < 0.05). 19 MRCP + metrics correlated significantly with liver function tests (range 0.29 ≤ R ≤ 0.43, p < 0.05). GGT and MRCP + metrics were significantly higher in ASC compared to those with AIH. The best multivariable model for distinguishing ASC from AIH included total number of ducts and the sum of relative severity of both strictures and dilatations AUC: 0.91 (95% CI 0.78–1). Quantitative MRCP metrics are a good discriminator of ASC from AIH.
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Evaluation of quantitative MRCP (MRCP+) for risk stratification of primary sclerosing cholangitis: comparison with morphological MRCP, MR elastography, and biochemical risk scores. Eur Radiol 2021; 32:67-77. [PMID: 34231037 DOI: 10.1007/s00330-021-08142-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 06/14/2021] [Accepted: 06/16/2021] [Indexed: 12/22/2022]
Abstract
OBJECTIVES To study the association of MRCP+ parameters with biochemical scoring systems and MR elastography (MRE) in primary sclerosing cholangitis (PSC). To evaluate the incremental value of combining MRCP+ with morphological scores in associating with biochemical scores. METHODS AND MATERIALS MRI images, liver stiffness measurements by MRE, and biochemical testing of 65 patients with PSC that were retrospectively enrolled between January 2014 and December 2015 were obtained. MRCP+ was used to post-process MRCP images to obtain quantitative measurements of the bile ducts and biliary tree. Linear regression analysis was used to test the associations. Bootstrapping was used as a validation method. RESULTS The total number of segmental strictures had the strongest association with Mayo Risk Score (R2 = 0.14), minimum stricture diameter had the highest association with Amsterdam Oxford Prognostic Index (R2 = 0.12), and the percentage of duct nodes with width 0-3 mm had the strongest association with PSC Risk Estimate Tool (R2 = 0.09). The presence of Ducts with medians > 9 mm had the highest association with MRE (R2= 0.21). The strength of association of MRCP+ to Mayo Risk Score was similar to ANALI2 and weaker than MRE (R2 = 0.23, 0.24, 0.38 respectively). MRCP+ enhanced the association of ANALI 2 and MRE with the Mayo Risk Score. CONCLUSIONS MRCP+ demonstrated a significant association with biochemical scores and MRE. The association of MRCP+ with the biochemical scores was generally comparable to ANALI scores. MRCP+ enhanced the association of ANALI2 and MRE with the Mayo Risk Score. KEY POINTS • MRCP+ has the potential to act as a risk stratfier in PSC. • MRE outperformed MRCP+ for risk stratifcation. • Combination of MRCP+ with MRE and ANALI scores improved overall performace as risk stratifiers.
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Machann J. Editorial for "Concentration of Gallbladder Phosphatidylcholine in Cholangiopathies: A 31 P MR Spectroscopy Pilot Study". J Magn Reson Imaging 2021; 55:541-542. [PMID: 34196071 DOI: 10.1002/jmri.27818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 06/04/2021] [Indexed: 11/08/2022] Open
Affiliation(s)
- Jürgen Machann
- Section on Experimental Radiology, Department of Diagnostic and Interventional Radiology, University Hospital Tübingen, Tübingen, Germany.,Institute for Diabetes Research and Metabolic Diseases (IDM) of the Helmholtz Center Munich at the University of Tübingen, Tübingen, Germany.,German Center for Diabetes Research (DZD), Germany
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Jiang S, Li Y. A comparative analysis of CT and MRI in differentiating pancreatic cancer from mass pancreatitis. Am J Transl Res 2021; 13:6431-6438. [PMID: 34306383 PMCID: PMC8290656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 03/17/2021] [Indexed: 06/13/2023]
Abstract
AIM This paper aims to explore the practical value of CT signs combined with magnetic resonance imaging with diffusion-weighted imaging (MRI-DWI) and magnetic resonance cholangiopancreatography (MRCP) in the differential diagnosis of pancreatic carcinoma and mass-forming pancreatitis. METHODS We carried out a retrospective analysis of the imaging data of 61 patients with pancreatic mass lesions who were diagnosed based on postoperative pathology in our hospital from May 2013 to May 2020 and analyzed the image diagnostic value of the combination of 128-slice CT and 1.5T MRI-DWI. RESULTS There were no significant differences in the pancreatic duct dilatation, the bile duct dilatation, or the peripancreatic and retroperitoneal lymph node enlargement between the patients with pancreatic carcinoma and the patients with mass-forming pancreatitis (P > 0.05). Both the incidences of lobulation signs and peripancreatic vascular invasion in the patients with pancreatic carcinoma were higher than they were in the patients with mass-forming pancreatitis, and the mass calcification, pseudocyst, and pancreatic duct stone rates, the net enhanced CT values in the arterial and pancreatic parenchyma phases, and the ADC values in pancreatic carcinoma patients were lower than they were in the patients with mass-forming pancreatitis (P < 0.05). The pancreatic duct stone and right prerenal fascial thickening rates in the patients with pancreatic carcinoma were lower than they were in the patients with mass-forming pancreatitis (P < 0.05). CONCLUSION CT signs combined with the MRI-DWI technique and MRCP can improve clinical pancreatic cancer diagnostic sensitivity.
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Affiliation(s)
- Song Jiang
- Department of Radiology, The First Affiliated Hospital of Chongqing Medical University Chongqing 400016, China
| | - Yongmei Li
- Department of Radiology, The First Affiliated Hospital of Chongqing Medical University Chongqing 400016, China
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Jang W, Song JS, Kim SH, Yang JD. Comparison of Compressed Sensing and Gradient and Spin-Echo in Breath-Hold 3D MR Cholangiopancreatography: Qualitative and Quantitative Analysis. Diagnostics (Basel) 2021; 11:diagnostics11040634. [PMID: 33915832 PMCID: PMC8065789 DOI: 10.3390/diagnostics11040634] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/07/2021] [Accepted: 01/18/2021] [Indexed: 02/07/2023] Open
Abstract
While magnetic resonance cholangiopancreatography (MRCP) is routinely used, compressed sensing MRCP (CS-MRCP) and gradient and spin-echo MRCP (GRASE-MRCP) with breath-holding (BH) may allow sufficient image quality with shorter acquisition times. This study qualitatively and quantitatively compared BH-CS-MRCP and BH-GRASE-MRCP and evaluated their clinical effectiveness. Data from 59 consecutive patients who underwent both BH-CS-MRCP and BH-GRASE-MRCP were qualitatively analyzed using a five-point Likert-type scale. The signal-to-noise ratio (SNR) of the common bile duct (CBD), contrast-to-noise ratio (CNR) of the CBD and liver, and contrast ratio between periductal tissue and the CBD were measured. Paired t-test, Wilcoxon signed-rank test, and McNemar’s test were used for statistical analysis. No significant differences were found in overall image quality or duct visualization of the CBD, right and left 1st level intrahepatic duct (IHD), cystic duct, and proximal pancreatic duct (PD). BH-CS-MRCP demonstrated higher background suppression and better visualization of right (p = 0.004) and left 2nd level IHD (p < 0.001), mid PD (p = 0.003), and distal PD (p = 0.041). Image quality degradation was less with BH-GRASE-MRCP than BH-CS-MRCP (p = 0.025). Of 24 patients with communication between a cyst and the PD, 21 (87.5%) and 15 patients (62.5%) demonstrated such communication on BH-CS-MRCP and BH-GRASE-MRCP, respectively. SNR, contrast ratio, and CNR of BH-CS-MRCP were higher than BH-GRASE-MRCP (p < 0.001). Both BH-CS-MRCP and BH-GRASE-MRCP are useful imaging methods with sufficient image quality. Each method has advantages, such as better visualization of small ducts with BH-CS-MRCP and greater time saving with BH-GRASE-MRCP. These differences allow diverse choices for visualization of the pancreaticobiliary tree in clinical practice.
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Affiliation(s)
- Weon Jang
- Department of Radiology, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Korea; (W.J.); (S.H.K.)
| | - Ji Soo Song
- Department of Radiology, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Korea; (W.J.); (S.H.K.)
- Research Institute of Clinical Medicine, Jeonbuk National University, Jeonju 54907, Korea
- Biomedical Research Institute, Jeonbuk National University Hospital, Jeonju 54907, Korea
- Correspondence: ; Tel.: +82-63-250-1150
| | - Sang Heon Kim
- Department of Radiology, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Korea; (W.J.); (S.H.K.)
| | - Jae Do Yang
- Department of Surgery, Jeonbuk National University Medical School, Jeonju 54907, Korea;
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Thomaides-Brears HB, Lepe R, Banerjee R, Duncker C. Multiparametric MR mapping in clinical decision-making for diffuse liver disease. Abdom Radiol (NY) 2020; 45:3507-3522. [PMID: 32761254 PMCID: PMC7593302 DOI: 10.1007/s00261-020-02684-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 06/12/2020] [Accepted: 07/22/2020] [Indexed: 02/07/2023]
Abstract
Accurate diagnosis, monitoring and treatment decisions in patients with chronic liver disease currently rely on biopsy as the diagnostic gold standard, and this has constrained early detection and management of diseases that are both varied and can be concurrent. Recent developments in multiparametric magnetic resonance imaging (mpMRI) suggest real potential to bridge the diagnostic gap between non-specific blood-based biomarkers and invasive and variable histological diagnosis. This has implications for the clinical care and treatment pathway in a number of chronic liver diseases, such as haemochromatosis, steatohepatitis and autoimmune or viral hepatitis. Here we review the relevant MRI techniques in clinical use and their limitations and describe recent potential applications in various liver diseases. We exemplify case studies that highlight how these techniques can improve clinical practice. These techniques could allow clinicians to increase their arsenals available to utilise on patients and direct appropriate treatments.
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Affiliation(s)
| | - Rita Lepe
- Texas Liver Institute, 607 Camden St, Suite 101, San Antonio, TX, 78215, USA
| | | | - Carlos Duncker
- Perspectum, 600 N. Pearl St. Suite 1960, Plaza of The Americas, Dallas, TX, 75201, USA
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