101
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Yu H, Wang Y, Wang Z, Li J, Lu J, Hu D. Prospective comparison of diffusion-weighted magnetic resonance enterography and contrast enhanced computed tomography enterography for the detection of ileocolonic Crohn's disease. J Gastroenterol Hepatol 2020; 35:1136-1142. [PMID: 31785602 DOI: 10.1111/jgh.14945] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 11/20/2019] [Accepted: 11/26/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND AIMS Crohn's disease (CD) is a chronic and relapsing course with various status of different segments, and there were no investigations comparing the lesion detection between magnetic resonance (MR) and computed tomography (CT) in term of the severity of CD. We aim to assess the performances of diffusion-weighted MR enterography (DW-MRE) and contrast enhanced CT enterography (CTE) for detecting different grade lesions in ileocolonic CD. METHODS Forty-one consecutive patients finally diagnosed with ileocolonic CD were included. All the patients prospectively underwent DW-MRE, contrast enhanced CTE, and ileocolonoscopy within 2 weeks. DW-MRE and CTE images were interpreted for the presence or absence of active CD segments by two experienced radiologists independently. Ileocolonic segments (terminal ileum, right colon, transverse colon, left colon, and rectum) were graded as inactive (0-2), mild (3-6), or moderate-severe (≥ 7) by the simplified endoscopic score for CD (SES-CD). Diagnostic efficiencies of DW-MRE and CTE for mild and/or moderate-severe CD segments were calculated and compared, using ileocolonoscopy as reference standard. RESULTS According to SES-CD, 190 ileocolonic segments from 41 CD patients were scored as 91 inactive, 68 mild, and 31 moderate-severe CD lesions. The sensitivity of DW-MRE for detecting active from inactive segments was higher than that of CTE, and the specificities of them had no significant differences. As for the subgroup analysis, DW-MRE was more sensitive for mild CD lesions than CTE (76.5% vs 60.3%; P = 0.019), while the sensitivities for moderate-severe CD were similar between these two modalities (96.8% for DW-MRE and 93.5% for CTE; P = 1.00). CONCLUSIONS Both DW-MRE and CTE had comparably excellent performances for moderate-severe CD detection; DW-MRE demonstrated better sensitivity in mild lesions compared with CTE and could be more suitable for the diagnosis of mild CD.
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Affiliation(s)
- Hao Yu
- Department of Radiology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yanchun Wang
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zi Wang
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jianjun Li
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jingyu Lu
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Daoyu Hu
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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102
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Which MRI Score and Technique Should Be Used for Assessing Crohn's Disease Activity? J Clin Med 2020; 9:jcm9061691. [PMID: 32498279 PMCID: PMC7355690 DOI: 10.3390/jcm9061691] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/13/2020] [Accepted: 05/25/2020] [Indexed: 02/06/2023] Open
Abstract
Magnetic resonance (MR) enterography is assuming an increasingly important and central role in the management of patients with Crohn’s disease, as it is not only involved in diagnosis and staging of the disease but also allows for patients’ follow-up, evaluating the response to therapy, and predicting disease outcomes. Several MR scores have been developed but unfortunately there is no globally accepted score. The most widely used scores are the Magnetic Resonance Index of Activity (MaRIA) score, the London score, the Nancy score, and the Clermont score; however, there are multiple differences between these tools in terms of the assessed radiological items, fasting, administration of oral or intravenous contrast, and the use of diffusion-weighted images. Here we reviewed the main characteristics of each MR scoring system to clarify which is the most appropriate score for monitoring disease activity in both clinical practice and clinical trials.
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103
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Takenaka K, Fujii T, Suzuki K, Shimizu H, Motobayashi M, Hibiya S, Saito E, Nagahori M, Watanabe M, Ohtsuka K. Small Bowel Healing Detected by Endoscopy in Patients With Crohn's Disease After Treatment With Antibodies Against Tumor Necrosis Factor. Clin Gastroenterol Hepatol 2020; 18:1545-1552. [PMID: 31442600 DOI: 10.1016/j.cgh.2019.08.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 07/29/2019] [Accepted: 08/09/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS It is important to objectively assess Crohn's disease (CD) activity in patients treated with antibodies against tumor necrosis factor (anti-TNF). Detection of healing by endoscopy (endoscopic healing) associates with patient outcome, based on evidence from studies of ileocolonoscopy. We assessed endoscopic healing after treatment, based on findings from balloon-assisted enteroscopy (BAE), in patients with CD. METHODS We performed a post-hoc analysis of data from a clinical trial from 116 patients with CD (46 with ileal and 70 with ileocolonic type) who received induction and then maintenance therapy with anti-TNF agents from January 2013 through March 2018 at a single center in Japan. We compared findings from BAE before induction therapy and then again during maintenance therapy (median 13 months later). Endoscopic healing was defined as the modified simple endoscopic score for CD below 5. We also collected data on previous treatments, makers of inflammation, and disease type. RESULTS Before treatment, small bowel ulcerations were present in 114 patients (98%); 42 patients (60%) with ileocolonic disease had colon ulcerations. During maintenance therapy, 41/114 patients (36%) had small bowel endoscopic healing; all the patients with small bowel endoscopic healing also had colonic endoscopic healing. Colonic endoscopic healing was observed in 33/42 patients (79%). The proportion of patients with small bowel endoscopic healing was significantly lower than that of colonic endoscopic healing (P < .001). Among all patients, failure to achieve small bowel endoscopic healing was significantly associated with structuring or penetrating disease (P = .014), lack of concomitant treatment with immunomodulators (P = .015), and having received previous treatment with an anti-TNF agents (P = .018). CONCLUSIONS In a post-hoc analysis of patients with CD treated with anti-TNF agents, we found small bowel ulcerations, detected by BAE, to be more difficult to heal than colon ulcerations.
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Affiliation(s)
- Kento Takenaka
- Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University, Tokyo, Japan; Endoscopic Unit, Tokyo Medical and Dental University Hospital, Tokyo, Japan
| | - Toshimitsu Fujii
- Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kohei Suzuki
- Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University, Tokyo, Japan; Endoscopic Unit, Tokyo Medical and Dental University Hospital, Tokyo, Japan
| | - Hiromichi Shimizu
- Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Maiko Motobayashi
- Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shuji Hibiya
- Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Eiko Saito
- Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Masakazu Nagahori
- Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Mamoru Watanabe
- Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kazuo Ohtsuka
- Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University, Tokyo, Japan; Endoscopic Unit, Tokyo Medical and Dental University Hospital, Tokyo, Japan.
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104
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Luo Y, Yu H, Hu D, Li J, Hu X, Li Z, Shen Y. Manganese threonine chelate-a new enteric contrast agent for MRI: a pilot study on rats. NMR IN BIOMEDICINE 2020; 33:e4293. [PMID: 32175654 DOI: 10.1002/nbm.4293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 02/24/2020] [Accepted: 02/27/2020] [Indexed: 06/10/2023]
Abstract
Enteric contrast agents are important in gastrointestinal MRI. However, no currently available agent is well established as the standard of care. In this study, in vitro relaxivities of manganese threonine chelate (Mn-Thr), a common nutritional food supplement, were measured at 1.5 T and 3 T with further investigation of its efficacy and safety in vivo as an enteric contrast agent. According to the calculated relaxivities, T1 W and T2 W TSE sequences of Mn-Thr solutions at different concentrations were acquired, and the optimal concentration for dark lumen imaging on both T1 W and T2 W images was determined in vitro. To validate the optimal concentration in vivo, eight Sprague-Dawley rats were randomly divided into two groups. Each group received rectal injection of either 2.00 g/L (about 3.80 mM) Mn-Thr or saline as an enteric contrast agent and underwent MRI. After a time interval of one week, the same procedures were repeated with the alternative contrast agent. Animals were sacrificed after the second MRI. Tissue manganese quantification and histopathological examination were obtained. Qualitative MR image quality assessments were performed and compared between Mn-Thr and saline. Measured T1 and T2 relaxivities of Mn-Thr were significantly higher than those of MnCl2 in vitro (p < 0.05). At the concentration of 2.00 g/L (about 3.80 mM), Mn-Thr produced a dark lumen on T1 W and T2 W images both in vitro and in vivo. Compared with saline, Mn-Thr showed significantly more homogenous luminal signal and increased bowel wall conspicuity in image quality assessments. Tissue manganese concentrations were not significantly different between two groups. Histopathological examinations were normal in both groups. Our data suggest that Mn-Thr possesses favorable paramagnetic properties and can create a homogenous dark lumen on T1 W and T2 W images without obvious side effects in healthy rats. As a commercially available nutritional food supplement, Mn-Thr appears to be a promising enteric contrast agent for MRI.
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Affiliation(s)
- Yan Luo
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hao Yu
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Daoyu Hu
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jiali Li
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xuemei Hu
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zhen Li
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yaqi Shen
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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105
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Schulberg JD, Wright EK, Holt BA, Sutherland TR, Hume SJ, Hamilton AL, Ross AL, Connell WC, Brown SJ, Lust M, Miller AM, Bell SJ, Kamm MA. Magnetic resonance enterography for predicting the clinical course of Crohn's disease strictures. J Gastroenterol Hepatol 2020; 35:980-987. [PMID: 31674069 DOI: 10.1111/jgh.14908] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 10/12/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIMS Strictures are the most common Crohn's disease complication, but their natural history is unknown. This study aimed to characterize inflammation, predict prognosis, and understand the impact of drug therapy using magnetic resonance enterography (MRE). METHODS Patients with a stricture diagnosed on MRE over a 5-year period were reviewed for MRE disease extent and inflammation, clinical course, C-reactive protein, response to anti-TNF therapy, endoscopic dilatation, hospitalization, and surgery. RESULTS 136 patients had 235 strictures (77, one and 59, ≥ 2 strictures). TREATMENT 46% of patients underwent surgery after a median 6 months; median follow-up for those not requiring surgery was 41 months. Predictors of surgery: Hospitalization because of obstruction predicted subsequent surgery (OR 2.50; 95% CI 1.06-5.90) while anti-TNF therapy commenced at stricture diagnosis was associated with a reduced risk (OR 0.23; 95% CI 0.05-0.99). MRE characteristics associated with surgery were proximal bowel dilatation ≥ 30-mm diameter (OR 2.98; 95% CI 1.36-6.55), stricture bowel wall thickness ≥ 10-mm (OR 2.42; 95% CI 1.11-5.27), and stricture length > 5-cm (OR 2.56; 95% CI 1.21-5.43). 81% of patients with these three adverse MRE features required surgery versus 17% if none were present (P < 0.001). Accuracy for these three MRE variables predicting surgery was high (AUC 0.76). CONCLUSION Magnetic resonance enterography findings in Crohn's disease strictures are highly predictive of the disease course and the need for future surgery. MRE may also identify who would benefit from treatment intensification. Anti-TNF therapy is associated with reduced risk of surgery and appears to alter the natural history of this complication.
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Affiliation(s)
- Julien D Schulberg
- Department of Gastroenterology, St Vincent's Hospital, Melbourne, Australia.,Department of Medicine, St Vincent's Hospital, University of Melbourne, Melbourne, Australia
| | - Emily K Wright
- Department of Gastroenterology, St Vincent's Hospital, Melbourne, Australia
| | - Bronte A Holt
- Department of Gastroenterology, St Vincent's Hospital, Melbourne, Australia.,Department of Medicine, St Vincent's Hospital, University of Melbourne, Melbourne, Australia
| | - Tom R Sutherland
- Department of Medicine, St Vincent's Hospital, University of Melbourne, Melbourne, Australia.,Department of Medical Imaging, St Vincent's Hospital, Melbourne, Australia
| | - Simon J Hume
- Department of Gastroenterology, St Vincent's Hospital, Melbourne, Australia
| | - Amy L Hamilton
- Department of Gastroenterology, St Vincent's Hospital, Melbourne, Australia.,Department of Medicine, St Vincent's Hospital, University of Melbourne, Melbourne, Australia
| | - Alyson L Ross
- Department of Gastroenterology, St Vincent's Hospital, Melbourne, Australia
| | - William C Connell
- Department of Gastroenterology, St Vincent's Hospital, Melbourne, Australia.,Department of Medicine, St Vincent's Hospital, University of Melbourne, Melbourne, Australia
| | - Steven J Brown
- Department of Gastroenterology, St Vincent's Hospital, Melbourne, Australia
| | - Mark Lust
- Department of Gastroenterology, St Vincent's Hospital, Melbourne, Australia
| | - Ashley M Miller
- Department of Gastroenterology, St Vincent's Hospital, Melbourne, Australia
| | - Sally J Bell
- Department of Gastroenterology, St Vincent's Hospital, Melbourne, Australia.,Department of Medicine, St Vincent's Hospital, University of Melbourne, Melbourne, Australia
| | - Michael A Kamm
- Department of Gastroenterology, St Vincent's Hospital, Melbourne, Australia.,Department of Medicine, St Vincent's Hospital, University of Melbourne, Melbourne, Australia
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106
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Nehra AK, Sheedy SP, Wells ML, VanBuren WM, Hansel SL, Deepak P, Lee YS, Bruining DH, Fletcher JG. Imaging Findings of Ileal Inflammation at Computed Tomography and Magnetic Resonance Enterography: What do They Mean When Ileoscopy and Biopsy are Negative? J Crohns Colitis 2020; 14:455-464. [PMID: 31960900 DOI: 10.1093/ecco-jcc/jjz122] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS Our goal was to determine the importance of ileal inflammation at computed tomography or magnetic resonance enterography in Crohn's disease patients with normal ileoscopy. METHODS Patients with negative ileoscopy and biopsy within 30 days of CT or MR enterography showing ileal inflammation were included. The severity [0-3 scale] and length of inflammation within the distal 20 cm of the terminal ileum were assessed on enterography. Subsequent medical records were reviewed for ensuing surgery, ulceration at ileoscopy, histological inflammation, or new or worsening ileal inflammation or stricture on enterography. Imaging findings were classified as: Confirmed Progression [subsequent surgery or radiological worsening, new ulcers at ileoscopy or positive histology]; Radiologic Response [decreased inflammation with medical therapy]; or Unlikely/Unconfirmed Inflammation. RESULTS Of 1471 patients undergoing enterography and ileoscopy, 112 [8%] had imaging findings of inflammation with negative ileoscopy, and 88 [6%] had negative ileoscopy and ileal biopsy. Half [50%; 44/88] with negative biopsy had moderate/severe inflammation at enterography, with 45%, 32% and 11% having proximal small bowel inflammation, stricture or fistulas, respectively. Two-thirds with negative biopsy [67%; 59/88] had Confirmed Progression, with 68%, 70% and 61% having subsequent surgical resection, radiological worsening or ulcers at subsequent ileoscopy, respectively. Mean length and severity of ileal inflammation in these patients was 10 cm and 1.6. Thirteen [15%] patients had Radiologic Response, and 16 [18%] had Unlikely/Unconfirmed Inflammation. CONCLUSION Crohn's disease patients with unequivocal imaging findings of ileal inflammation at enterography despite negative ileoscopy and biopsy are likely to have active inflammatory Crohn's disease. Disease detected by imaging may worsen over time or respond to medical therapy.
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Affiliation(s)
- Avinash K Nehra
- Division of Abdominal Imaging, Mayo Clinic, Rochester, MN, USA
| | | | - Michael L Wells
- Division of Abdominal Imaging, Mayo Clinic, Rochester, MN, USA
| | | | - Stephanie L Hansel
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Parakkal Deepak
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA.,Division of Gastroenterology, Washington University School of Medicine, St. Louis, MO, USA
| | - Yong S Lee
- Division of Abdominal Imaging, Mayo Clinic, Rochester, MN, USA
| | - David H Bruining
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Joel G Fletcher
- Division of Abdominal Imaging, Mayo Clinic, Rochester, MN, USA
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107
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Strategies to Reduce the Use of Gadolinium-Based Contrast Agents for Abdominal MRI in Children. AJR Am J Roentgenol 2020; 214:1054-1064. [DOI: 10.2214/ajr.19.22232] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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108
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Stidham RW, Enchakalody B, Waljee AK, Higgins PDR, Wang SC, Su GL, Wasnik AP, Al-Hawary M. Assessing Small Bowel Stricturing and Morphology in Crohn's Disease Using Semi-automated Image Analysis. Inflamm Bowel Dis 2020; 26:734-742. [PMID: 31504540 PMCID: PMC7150581 DOI: 10.1093/ibd/izz196] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND Evaluating structural damage using imaging is essential for the evaluation of small intestinal Crohn's disease (CD), but it is limited by potential interobserver variation. We compared the agreement of enterography-based bowel damage measurements collected by experienced radiologists and a semi-automated image analysis system. METHODS Patients with small bowel CD undergoing a CT-enterography (CTE) between 2011 and 2017 in a tertiary care setting were retrospectively reviewed. CT-enterography studies were reviewed by 2 experienced radiologists and separately underwent automated computer image analysis using bowel measurement software. Measurements included maximum bowel wall thickness (BWT-max), maximum bowel dilation (DIL-max), minimum lumen diameter (LUM-min), and the presence of a stricture. Measurement correlation coefficients and paired t tests were used to compare individual operator measurements. Multivariate regression was used to model identification of strictures using semi-automated measures. RESULTS In 138 studies, the correlation between radiologists and semi-automated measures were similar for BWT-max (r = 0.724, 0.702), DIL-max (r = 0.812, 0.748), and LUM-min (r = 0.428, 0.381), respectively. Mean absolute measurement difference between semi-automated and radiologist measures were no different from the mean difference between paired radiologists for BWT-max (1.26 mm vs 1.12 mm, P = 0.857), DIL-max (2.78 mm vs 2.67 mm, P = 0.557), and LUM-min (0.54 mm vs 0.41 mm, P = 0.596). Finally, models of radiologist-defined intestinal strictures using automatically acquired measurements had an accuracy of 87.6%. CONCLUSION Structural bowel damage measurements collected by semi-automated approaches are comparable to those of experienced radiologists. Radiomic measures of CD will become an important new data source powering clinical decision-making, patient-phenotyping, and assisting radiologists in reporting objective measures of disease status.
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Affiliation(s)
- Ryan W Stidham
- Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, MI, USA
- Morphomic Analysis Program, University of Michigan, Ann Arbor, MI, USA
- Michigan Integrated Center for Health Analytics and Medical Prediction, Ann Arbor, MI, USA
- Address correspondence to: Ryan W. Stidham, MD, MS, University of Michigan School of Medicine, 1500 East Medical Center Drive, 3912 Taubman Center, Ann Arbor, MI 48109 USA. E-mail:
| | - Binu Enchakalody
- Morphomic Analysis Program, University of Michigan, Ann Arbor, MI, USA
- Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Akbar K Waljee
- Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, MI, USA
- Michigan Integrated Center for Health Analytics and Medical Prediction, Ann Arbor, MI, USA
- VA Center for Clinical Management Research, VA Ann Arbor Health Care System, Ann Arbor, MI, USA
| | - Peter D R Higgins
- Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, MI, USA
| | - Stewart C Wang
- Morphomic Analysis Program, University of Michigan, Ann Arbor, MI, USA
- Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Grace L Su
- Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, MI, USA
- Morphomic Analysis Program, University of Michigan, Ann Arbor, MI, USA
- VA Center for Clinical Management Research, VA Ann Arbor Health Care System, Ann Arbor, MI, USA
| | - Ashish P Wasnik
- Morphomic Analysis Program, University of Michigan, Ann Arbor, MI, USA
- Department of Radiology, University of Michigan, Ann Arbor, MI, USA
| | - Mahmoud Al-Hawary
- Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, MI, USA
- Morphomic Analysis Program, University of Michigan, Ann Arbor, MI, USA
- Department of Radiology, University of Michigan, Ann Arbor, MI, USA
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109
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Ramos López L, Hernández Camba A, Rodríguez-Lago I, Carrillo Palau M, Cejas Dorta L, Elorza A, Alonso Abreu I, Vela M, Hidalgo A, Hernández Álvarez-Builla N, Rodríguez GE, Rodríguez Y, Tardillo C, Díaz-Flórez L, Eiroa D, Aduna M, Garrido MS, Larena JA, Cabriada JL, Quintero Carrion E. Usefulness of magnetic resonance enterography in the clinical decision-making process for patients with inflammatory bowel disease. GASTROENTEROLOGIA Y HEPATOLOGIA 2020; 43:439-445. [PMID: 32349904 DOI: 10.1016/j.gastrohep.2020.03.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 03/04/2020] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To evaluate the impact of magnetic resonance enterography (MRE) diagnosis on clinical decision-making regarding treatment choice and maintenance of treatment over time in patients with inflammatory bowel disease (IBD). METHODS A cohort of patients who underwent MRE for IBD assessment between 2011 and 2014 was analyzed. From clinical records, we retrospectively retrieved their demographic data and clinical data on their IBD at the time of MRE, the results of MRE and the patient's clinical course. Medical management decisions made during the three months following MRE and at the 15-month follow-up were assessed. RESULTS In total, 474 MREs were reviewed. In the first three-month period, MRE results led to changes in the medical management of 266 patients (56.1%). Of those, maintenance therapy was altered in 140 patients (68.3%) (90.7% step-up and 9.3% top-down strategy), 65 (24.4%) were prescribed a course of steroids and 61 (22.9%) underwent surgery. MRE confirmed a CD diagnosis in 14/41 patients (34.1%) previously diagnosed with indeterminate colitis or ulcerative colitis and in 4/18 patients (22.2%) with suspected IBD. At the 15-month follow-up, treatment remained unchanged in 289 patients (65.8%). CONCLUSIONS These results suggest that MRE is a diagnostic tool that provides valid information for the clinical-decision making process for patients with CD.
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Affiliation(s)
- Laura Ramos López
- Servicio de Aparato Digestivo, Hospital Universitario de Canarias, Tenerife, Spain
| | - Alejandro Hernández Camba
- Servicio de Aparato Digestivo, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz De Tenerife, Spain.
| | | | - Marta Carrillo Palau
- Servicio de Aparato Digestivo, Hospital Universitario de Canarias, Tenerife, Spain
| | - Luis Cejas Dorta
- Servicio de Aparato Digestivo, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz De Tenerife, Spain
| | - Ainara Elorza
- Servicio de Aparato Digestivo, Hospital de Galdakao, Galdakao, Spain
| | | | - Milagros Vela
- Servicio de Aparato Digestivo, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz De Tenerife, Spain
| | - Alba Hidalgo
- Servicio de Aparato Digestivo, Hospital de Galdakao, Galdakao, Spain
| | | | - G Esther Rodríguez
- Servicio de Aparato Digestivo, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz De Tenerife, Spain
| | - Yolanda Rodríguez
- Servicio de Aparato Digestivo, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz De Tenerife, Spain
| | - Carlos Tardillo
- Servicio de Aparato Digestivo, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz De Tenerife, Spain
| | - Lucio Díaz-Flórez
- Servicio de Radiología, Hospital Universitario de Canarias, Tenerife, Spain
| | - Daniel Eiroa
- Servicio de Radiología, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz De Tenerife, Spain
| | - Marta Aduna
- Osatek, Hospital de Galdakao, Galdakao, Spain
| | - María S Garrido
- Servicio de Radiología, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz De Tenerife, Spain
| | | | - José L Cabriada
- Servicio de Aparato Digestivo, Hospital de Galdakao, Galdakao, Spain
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110
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Rimola J, Capozzi N. Differentiation of fibrotic and inflammatory component of Crohn's disease-associated strictures. Intest Res 2020; 18:144-150. [PMID: 32326668 PMCID: PMC7206345 DOI: 10.5217/ir.2020.00015] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 03/08/2020] [Indexed: 12/22/2022] Open
Abstract
Patients with Crohn's disease (CD) commonly develop bowel strictures, which may contain various degrees of inflammation and fibrosis. While predominantly inflammatory strictures may benefit from a medical anti-inflammatory treatment approach, fibrotic strictures would require endoscopic balloon dilation or surgery. Cross-sectional imaging surpasses endoscopy for characterization of stenotic segments and potentially may contribute to the optimal clinical management of these patients. This short review aims to discuss the potentialities and limitations of cross-sectional imaging techniques for assessing bowel fibrosis in patients with CD.
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Affiliation(s)
- Jordi Rimola
- Department of Radiology, Hospital Clinic Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas (CIBER-EHD), Spain
| | - Nunzia Capozzi
- Department of Radiology, Hospital Clinic Barcelona, Barcelona, Spain.,Department of Radiology, University Hospital Sant'Orsola Malpighi, Bologna, Italy
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Guglielmo FF, Anupindi SA, Fletcher JG, Al-Hawary MM, Dillman JR, Grand DJ, Bruining DH, Chatterji M, Darge K, Fidler JL, Gandhi NS, Gee MS, Grajo JR, Huang C, Jaffe TA, Park SH, Rimola J, Soto JA, Taouli B, Taylor SA, Baker ME. Small Bowel Crohn Disease at CT and MR Enterography: Imaging Atlas and Glossary of Terms. Radiographics 2020; 40:354-375. [DOI: 10.1148/rg.2020190091] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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112
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Danese S, Rimola J, Siegelman J. Reply. Gastroenterology 2020; 158:1177-1178. [PMID: 31911101 DOI: 10.1053/j.gastro.2019.12.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 12/30/2019] [Indexed: 12/02/2022]
Affiliation(s)
- Silvio Danese
- IBD Center, Humanitas Clinical and Research Center, Humanitas University, Rozzano, Milan, Italy
| | - Jordi Rimola
- Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
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Heverhagen JT. Invited Commentary on “Small Bowel Crohn Disease at CT and MR Enterography,” with Response from Dr Guglielmo et al. Radiographics 2020; 40:375-377. [DOI: 10.1148/rg.2020190213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Johannes T. Heverhagen
- University Institute for Diagnostic, Interventional and Pediatric Radiology, Inselspital University Hospital, Bern Bern, Switzerland
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Navallas M, Inarejos Clemente EJ, Iglesias E, Rebollo-Polo M, Hernández JC, Navarro OM. Autoinflammatory diseases in childhood, part 2: polygenic syndromes. Pediatr Radiol 2020; 50:431-444. [PMID: 32065273 DOI: 10.1007/s00247-019-04544-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 07/29/2019] [Accepted: 09/20/2019] [Indexed: 02/08/2023]
Abstract
Autoinflammatory diseases are a family of disorders characterized by aberrant stimulation of inflammatory pathways without involvement of antigen-directed autoimmunity. They can be further divided in monogenic and polygenic types. Those without an identified genetic mutation are known as polygenic and include systemic-onset juvenile idiopathic arthritis, idiopathic recurrent acute pericarditis, Behçet syndrome, chronic recurrent multifocal osteomyelitis and inflammatory bowel disease among others. Autoinflammatory diseases are characterized by recurrent flares or persistent systemic inflammation and fever, as well as lymphadenopathy and cutaneous, abdominal, thoracic and articular symptoms. Although these syndromes can mimic infections clinically, the inflammatory lesions in autoinflammatory disorders are aseptic. However, because of their infrequency, varied and nonspecific presentation, and the new genetic identification, diagnosis is usually delayed. In this article, which is Part 2 of a two-part series, the authors review the main polygenic autoinflammatory diseases that can be seen in childhood, with special emphasis wherever applicable on imaging features that may help establish the correct diagnosis. However, the major role of imaging is to delineate organ involvement and disease extent.
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Affiliation(s)
- María Navallas
- Department of Radiology, Hospital Sant Joan de Déu, Passeig Sant Joan de Déu, 2, 08950 Esplugues de Llobregat, Barcelona, Spain. .,Department of Medical Imaging, University of Toronto, Toronto, ON, Canada. .,Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Canada.
| | - Emilio J Inarejos Clemente
- Department of Radiology, Hospital Sant Joan de Déu, Passeig Sant Joan de Déu, 2, 08950 Esplugues de Llobregat, Barcelona, Spain
| | | | - Mónica Rebollo-Polo
- Department of Radiology, Hospital Sant Joan de Déu, Passeig Sant Joan de Déu, 2, 08950 Esplugues de Llobregat, Barcelona, Spain
| | | | - Oscar M Navarro
- Department of Medical Imaging, University of Toronto, Toronto, ON, Canada.,Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Canada
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115
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Pous S, Frasson M, Jiménez R, Pamiés J, Puchades I, Llavador M, García-Granero E, Nos P. Relevance of dynamic studies with magnetic resonance enterography in Crohn's disease. GASTROENTEROLOGIA Y HEPATOLOGIA 2020; 43:179-187. [PMID: 32089377 DOI: 10.1016/j.gastrohep.2019.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 10/21/2019] [Accepted: 11/17/2019] [Indexed: 11/16/2022]
Abstract
INTRODUCTION A proper quantification of the inflammatory activity in Crohn's disease (CD) lesions is needed to establish the appropriate management for each patient. The aim of this study is to evaluate the inflammatory activity of affected segments in small bowel lesions using dynamic studies of magnetic resonance enterography (MRE) in patients undergoing surgery, and their correlation with the level of inflammation and histological fibrosis of the surgical piece. METHODS A prospective, consecutive, observational, clinical study was conducted that included all the patients with small bowel CD that underwent surgery in this center between March 2011 and September 2013. Diagnosis was established according to Lennard-Jones criteria and the Montreal classification. All the patients underwent MRE within three months before surgery, using a routine protocol involving Liver Acquisition with Volume Acceleration-Extended Volume (LAVA-XV) sequence for the dynamic studies before intravenous administering of gadolinium and 30, 70, 120, and 420s after administering this. The results allowed the designing of graphics with different uptake patterns. The Chiorean classification was used in the histological analysis, as well as a modified version published previously by this study group. RESULTS A total of 28 patients with 47 lesions were analyzed. There was a significant correlation between both curve patterns, including the modified Chiorean classification (P<0.0001) as well as the level of inflammation (P<0.0001) and fibrosis (P<0.002). Inflammatory patterns of dynamic studies are related to histological findings with 80.9% accuracy (sensitivity=75.7%; specificity=100%). CONCLUSION There is a high correlation between dynamic enhancement studies and the level of inflammatory activity. MRE is a suitable tool to differentiate between inflammatory and fibrotic lesions, making it useful to decide the appropriate management of each patient.
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Affiliation(s)
- Salvador Pous
- Department of General Surgery, Colorectal Unit, La Fe University Hospital, University of Valencia, Spain
| | - Matteo Frasson
- Department of General Surgery, Colorectal Unit, La Fe University Hospital, University of Valencia, Spain
| | - Raquel Jiménez
- Department of General Surgery, Colorectal Unit, La Fe University Hospital, University of Valencia, Spain
| | - José Pamiés
- Department of Radiology, La Fe University Hospital, Spain
| | - Icíar Puchades
- Department of General Surgery, Colorectal Unit, La Fe University Hospital, University of Valencia, Spain
| | | | - Eduardo García-Granero
- Department of General Surgery, Colorectal Unit, La Fe University Hospital, University of Valencia, Spain
| | - Pilar Nos
- Department of Gastroenterology, Inflammatory Bowel Disease Unit, La Fe University Hospital, Spain; CIBEREHD (Networked Biomedical Research Center for Hepatic and Digestive Disease), Spain.
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Zheng MQ, Zeng QS, Yu YQ, Ji R, Li YY, Zhang MM, Sun YN, Li LX, Zuo XL, Yang XY, Li YQ. Evaluation of the performance of two neutral oral contrast agents in computed tomography enterography: A randomized controlled trial. J Dig Dis 2020; 21:112-119. [PMID: 31825554 PMCID: PMC7065060 DOI: 10.1111/1751-2980.12835] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 11/24/2019] [Accepted: 12/09/2019] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To compare the performances, tolerability and acceptability of mannitol and polyethylene glycol (PEG) as oral contrast agents in patients undergoing computed tomography enterography (CTE). METHODS Patients aged 18-75 years indicated for CTE were randomized to receive either mannitol or PEG as contrast agents. The coronal reconstructed images of each abdominal quadrant were assessed for maximum distention, proportion of distended bowel loops, presence of inhomogeneous contents and visibility of the small bowel wall. Overall subjective imaging quality assessment and patients' tolerability and acceptability were recorded. RESULTS Seventy patients were enrolled and randomized into two groups. In the per-protocol analysis, no significant differences in imaging quality was found in bowel distention maximum diameter, wall visibility and intestinal homogeneity (all P > 0.05). The mean nausea score was lower in the mannitol group (0 [0-0] vs 1.0 [0-3.0], P < 0.001). Mannitol was superior to PEG in taste (9.0 [8.0-10.0] vs 7.0 [5.0-8.0], P < 0.001), patients' willingness to reuse the drug (9.0 [8.0-10.0] vs 8.0 [7.0-9.0], P = 0.036), satisfaction (9.0 [8.0-10.0] vs 8.0 [7.0-9.0], P = 0.022) and ease of completion (9.0 [8.0-9.3] vs 8.0 [6.5-9.0], P = 0.030). CONCLUSIONS Both mannitol and PEG provided good bowel distention and visualization of the bowel wall. However, mannitol was significantly superior to PEG in patients' tolerability and acceptability.
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Affiliation(s)
- Meng Qi Zheng
- Department of GastroenterologyQilu Hospital of Shandong UniversityJinanShandong ProvinceChina,Department of Laboratory of Translational GastroenterologyQilu Hospital of Shandong UniverisityJinanShandong ProvinceChina,Department of Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI TumorQilu Hospital of Shandong UniversityJinanShandong ProvinceChina
| | - Qing Shi Zeng
- Department of RadiologyQilu Hospital of Shandong UniversityJinanShandong ProvinceChina
| | - Yong Quan Yu
- Department of RadiologyWeihai Central HospitalWeihaiShandong ProvinceChina
| | - Rui Ji
- Department of GastroenterologyQilu Hospital of Shandong UniversityJinanShandong ProvinceChina,Department of Laboratory of Translational GastroenterologyQilu Hospital of Shandong UniverisityJinanShandong ProvinceChina,Department of Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI TumorQilu Hospital of Shandong UniversityJinanShandong ProvinceChina
| | - Yue Yue Li
- Department of GastroenterologyQilu Hospital of Shandong UniversityJinanShandong ProvinceChina,Department of Laboratory of Translational GastroenterologyQilu Hospital of Shandong UniverisityJinanShandong ProvinceChina,Department of Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI TumorQilu Hospital of Shandong UniversityJinanShandong ProvinceChina
| | - Ming Ming Zhang
- Department of GastroenterologyQilu Hospital of Shandong UniversityJinanShandong ProvinceChina,Department of Laboratory of Translational GastroenterologyQilu Hospital of Shandong UniverisityJinanShandong ProvinceChina,Department of Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI TumorQilu Hospital of Shandong UniversityJinanShandong ProvinceChina
| | - Yi Ning Sun
- Department of GastroenterologyQilu Hospital of Shandong UniversityJinanShandong ProvinceChina,Department of Laboratory of Translational GastroenterologyQilu Hospital of Shandong UniverisityJinanShandong ProvinceChina,Department of Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI TumorQilu Hospital of Shandong UniversityJinanShandong ProvinceChina
| | - Li Xiang Li
- Department of GastroenterologyQilu Hospital of Shandong UniversityJinanShandong ProvinceChina,Department of Laboratory of Translational GastroenterologyQilu Hospital of Shandong UniverisityJinanShandong ProvinceChina,Department of Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI TumorQilu Hospital of Shandong UniversityJinanShandong ProvinceChina
| | - Xiu Li Zuo
- Department of GastroenterologyQilu Hospital of Shandong UniversityJinanShandong ProvinceChina,Department of Laboratory of Translational GastroenterologyQilu Hospital of Shandong UniverisityJinanShandong ProvinceChina,Department of Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI TumorQilu Hospital of Shandong UniversityJinanShandong ProvinceChina
| | - Xiao Yun Yang
- Department of GastroenterologyQilu Hospital of Shandong UniversityJinanShandong ProvinceChina,Department of Laboratory of Translational GastroenterologyQilu Hospital of Shandong UniverisityJinanShandong ProvinceChina,Department of Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI TumorQilu Hospital of Shandong UniversityJinanShandong ProvinceChina
| | - Yan Qing Li
- Department of GastroenterologyQilu Hospital of Shandong UniversityJinanShandong ProvinceChina,Department of Laboratory of Translational GastroenterologyQilu Hospital of Shandong UniverisityJinanShandong ProvinceChina,Department of Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI TumorQilu Hospital of Shandong UniversityJinanShandong ProvinceChina
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Practical guidelines on endoscopic treatment for Crohn's disease strictures: a consensus statement from the Global Interventional Inflammatory Bowel Disease Group. Lancet Gastroenterol Hepatol 2020; 5:393-405. [PMID: 31954438 DOI: 10.1016/s2468-1253(19)30366-8] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 09/09/2019] [Accepted: 09/17/2019] [Indexed: 02/08/2023]
Abstract
Stricture formation is a common complication of Crohn's disease, resulting from the disease process, surgery, or drugs. Endoscopic balloon dilation has an important role in the management of strictures, with emerging techniques, such as endoscopic electroincision and stenting, showing promising results. The underlying disease process, altered bowel anatomy from disease or surgery, and concurrent use of immunosuppressive drugs can make endoscopic procedures more challenging. There is an urgent need for the standardisation of endoscopic procedures and peri-procedural management strategies. On the basis of an extensive literature review and the clinical experience of the consensus group, which consisted of representatives from the Interventional Inflammatory Bowel Disease Group, we propose detailed guidance on all aspects of the principles and techniques for endoscopic procedures in the treatment of inflammatory bowel disease-associated strictures.
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118
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Fang ZN, Li XH, Lin JJ, Huang SY, Cao QH, Chen ZH, Sun CH, Zhang ZW, Rieder F, Rimola J, Chen MH, Li ZP, Mao R, Feng ST. Magnetisation transfer imaging adds information to conventional MRIs to differentiate inflammatory from fibrotic components of small intestinal strictures in Crohn's disease. Eur Radiol 2020; 30:1938-1947. [PMID: 31900705 PMCID: PMC7760892 DOI: 10.1007/s00330-019-06594-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 11/09/2019] [Accepted: 11/14/2019] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Identifying inflammation- or fibrosis-predominant strictures in Crohn's disease (CD) is crucial for treatment strategies. We evaluated the additive value of magnetisation transfer (MT) to conventional MRI for differentiating CD strictures using surgical histopathology as a reference standard. METHODS Twenty-eight consecutive CD patients who underwent MRI preoperatively were recruited. MRI parameters included T2-weighted imaging (T2WI) hyperintensity, bowel wall thickness, enhancement pattern changes over time, enhancement pattern and gain ratio in dynamic contrast-enhanced phases, and MT ratio. Correlation analysis was performed using Spearman's rank test. Receiver operating characteristic curve analysis and Cohen's κ were used. A model with combined MRI variables characterising intestinal strictures was proposed and validated in 14 additional CD patients. RESULTS Significant correlations with histological inflammation scores were shown for wall thickness (r = 0.361, p = 0.001) and T2WI hyperintensity (r = 0.396, p < 0.001), whereas histological fibrosis scores were significantly correlated with MT ratio (r = 0.681, p < 0.001) and wall thickness (r = 0.461, p < 0.001). T2WI hyperintensity could differentiate mild from moderate-to-severe inflammation with a sensitivity of 0.871 and a specificity of 0.800. MT ratio could discriminate mild from moderate-to-severe fibrosis with a sensitivity and a specificity of 0.913 and 0.923, respectively. Combining MT ratio and T2WI hyperintensity, the MRI classification moderately agreed with the pathological stricture classification (p < 0.01, κ = 0.549). In the validation set, the diagnostic accuracy of T2WI hyperintensity and MT ratio were 86% and 89%, with good agreement between MRI and histopathological classification (p < 0.01, κ = 0.665). CONCLUSIONS MT ratio combined with conventional MRI improves the differentiation of fibrotic from inflammatory components of small-bowel strictures in CD patients. KEY POINTS • MT ratio from magnetisation transfer imaging combined with T2WI from conventional MRI can simultaneously characterise bowel fibrosis and inflammation in adult Crohn's disease.
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Affiliation(s)
- Zhuang-Nian Fang
- Department of Radiology, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan II Road, Guangzhou, 510080, People's Republic of China
| | - Xue-Hua Li
- Department of Radiology, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan II Road, Guangzhou, 510080, People's Republic of China
| | - Jin-Jiang Lin
- Department of Radiology, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan II Road, Guangzhou, 510080, People's Republic of China
| | - Si-Yun Huang
- Department of Radiology, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan II Road, Guangzhou, 510080, People's Republic of China
| | - Qing-Hua Cao
- Department of Pathology, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan II Road, Guangzhou, 510080, People's Republic of China
| | - Zhi-Hui Chen
- Department of Gastrointestinal and Pancreatic Surgery, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan II Road, Guangzhou, 510080, People's Republic of China
| | - Can-Hui Sun
- Department of Radiology, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan II Road, Guangzhou, 510080, People's Republic of China
| | - Zhong-Wei Zhang
- Mallinckrodt Institute of Radiology, Washington University in St. Louis, 510 South Kingshighway Boulevard, St. Louis, MO, 6310, USA
| | - Florian Rieder
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, USA
| | - Jordi Rimola
- Department of Radiology, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Villarroel 170, 08036, Barcelona, Barcelona, Spain
| | - Min-Hu Chen
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan II Road, Guangzhou, 510080, People's Republic of China
| | - Zi-Ping Li
- Department of Radiology, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan II Road, Guangzhou, 510080, People's Republic of China
| | - Ren Mao
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan II Road, Guangzhou, 510080, People's Republic of China.
| | - Shi-Ting Feng
- Department of Radiology, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan II Road, Guangzhou, 510080, People's Republic of China.
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Park SH, Park SH. Simplified Magnetic Resonance Index of Activity for Crohn's Disease-Let's Try to Kick It Up a Notch. Gastroenterology 2020; 158:281-282.e1. [PMID: 31704303 DOI: 10.1053/j.gastro.2019.08.062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 08/12/2019] [Indexed: 12/25/2022]
Affiliation(s)
- Seong Ho Park
- Department of Radiology and Research Institute of Radiology and, Inflammatory Bowel Disease Center, Asan Medical Center, University of Ulsan College of Medicine, Songpa-gu, Seoul, South Korea
| | - Sang Hyoung Park
- Department of Gastroenterology and, Inflammatory Bowel Disease Center, Asan Medical Center, University of Ulsan College of Medicine, Songpa-gu, Seoul, South Korea
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120
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Park SH, Al-Bawardy B, Aniwan S, Kane SV, Coelho-Prabhu N, Papadakis KA, Kisiel JB, Bruining DH, Faubion WA, Raffals LE, Pardi DS, Tremaine WJ, Stephens MC, Tung J, Khanna S, Willrich MAV, Loftus EV. Distinct Cutoff Values of Adalimumab Trough Levels Are Associated With Different Therapeutic Outcomes in Patients With Inflammatory Bowel Disease. CROHNS & COLITIS 360 2019. [DOI: 10.1093/crocol/otz047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Abstract
Background and Aims
We aimed to evaluate the relationship of serum adalimumab trough levels (ATL) with disease activity of inflammatory bowel disease (IBD) patients in a large, well-characterized referral center-based cohort.
Methods
We compared serum ATL between those with clinical, biochemical, or endoscopic/radiologic disease activity and those without.
Results
A total of 236 patients with IBD were included. Higher cutoff levels were associated with endoscopic and/or radiologic responses (cutoff value: 5.3 mcg/mL, P = 0.003) compared with improvement in C-reactive protein (cutoff value: 4.3 mcg/mL, P = 0.031).
Conclusions
Higher cutoff ATL was associated with endoscopic and/or radiologic response.
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Affiliation(s)
- Sang Hyoung Park
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Badr Al-Bawardy
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN
- Yale School of Medicine, Section of Digestive Diseases, New Haven, CT
| | - Satimai Aniwan
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN
- Division of Gastroenterology, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - Sunanda V Kane
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN
| | | | | | - John B Kisiel
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN
| | - David H Bruining
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN
| | - William A Faubion
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN
| | - Laura E Raffals
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN
| | - Darrell S Pardi
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN
| | | | | | - Jeanne Tung
- Department of Pediatrics, Oklahoma University Health Sciences Center, Oklahoma City. OK
| | - Sahil Khanna
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN
| | | | - Edward V Loftus
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN
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Khoshpouri P, Habibabadi RR, Hazhirkarzar B, Ameli S, Ghadimi M, Ghasabeh MA, Menias CO, Kim A, Li Z, Kamel IR. Imaging Features of Primary Sclerosing Cholangitis: From Diagnosis to Liver Transplant Follow-up. Radiographics 2019; 39:1938-1964. [DOI: 10.1148/rg.2019180213] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Pegah Khoshpouri
- From the Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, 600 N Wolfe St, MRI Room 143, Baltimore, MD 21287 (P.K., R.R.H., B.H., S.A., M.G., M.A.G., A.K., Z.L., I.R.K.); and Department of Radiology, Mayo Clinic Phoenix, Scottsdale, Ariz (C.O.M.)
| | - Roya Rezvani Habibabadi
- From the Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, 600 N Wolfe St, MRI Room 143, Baltimore, MD 21287 (P.K., R.R.H., B.H., S.A., M.G., M.A.G., A.K., Z.L., I.R.K.); and Department of Radiology, Mayo Clinic Phoenix, Scottsdale, Ariz (C.O.M.)
| | - Bita Hazhirkarzar
- From the Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, 600 N Wolfe St, MRI Room 143, Baltimore, MD 21287 (P.K., R.R.H., B.H., S.A., M.G., M.A.G., A.K., Z.L., I.R.K.); and Department of Radiology, Mayo Clinic Phoenix, Scottsdale, Ariz (C.O.M.)
| | - Sanaz Ameli
- From the Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, 600 N Wolfe St, MRI Room 143, Baltimore, MD 21287 (P.K., R.R.H., B.H., S.A., M.G., M.A.G., A.K., Z.L., I.R.K.); and Department of Radiology, Mayo Clinic Phoenix, Scottsdale, Ariz (C.O.M.)
| | - Maryam Ghadimi
- From the Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, 600 N Wolfe St, MRI Room 143, Baltimore, MD 21287 (P.K., R.R.H., B.H., S.A., M.G., M.A.G., A.K., Z.L., I.R.K.); and Department of Radiology, Mayo Clinic Phoenix, Scottsdale, Ariz (C.O.M.)
| | - Mounes Aliyari Ghasabeh
- From the Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, 600 N Wolfe St, MRI Room 143, Baltimore, MD 21287 (P.K., R.R.H., B.H., S.A., M.G., M.A.G., A.K., Z.L., I.R.K.); and Department of Radiology, Mayo Clinic Phoenix, Scottsdale, Ariz (C.O.M.)
| | - Christine O. Menias
- From the Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, 600 N Wolfe St, MRI Room 143, Baltimore, MD 21287 (P.K., R.R.H., B.H., S.A., M.G., M.A.G., A.K., Z.L., I.R.K.); and Department of Radiology, Mayo Clinic Phoenix, Scottsdale, Ariz (C.O.M.)
| | - Amy Kim
- From the Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, 600 N Wolfe St, MRI Room 143, Baltimore, MD 21287 (P.K., R.R.H., B.H., S.A., M.G., M.A.G., A.K., Z.L., I.R.K.); and Department of Radiology, Mayo Clinic Phoenix, Scottsdale, Ariz (C.O.M.)
| | - Zhiping Li
- From the Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, 600 N Wolfe St, MRI Room 143, Baltimore, MD 21287 (P.K., R.R.H., B.H., S.A., M.G., M.A.G., A.K., Z.L., I.R.K.); and Department of Radiology, Mayo Clinic Phoenix, Scottsdale, Ariz (C.O.M.)
| | - Ihab R. Kamel
- From the Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, 600 N Wolfe St, MRI Room 143, Baltimore, MD 21287 (P.K., R.R.H., B.H., S.A., M.G., M.A.G., A.K., Z.L., I.R.K.); and Department of Radiology, Mayo Clinic Phoenix, Scottsdale, Ariz (C.O.M.)
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Grass F, Fletcher JG, Alsughayer A, Petersen M, Bruining DH, Bartlett DJ, Mathis KL, Lightner AL. Development of an Objective Model to Define Near-Term Risk of Ileocecal Resection in Patients with Terminal Ileal Crohn Disease. Inflamm Bowel Dis 2019; 25:1845-1853. [PMID: 31050733 DOI: 10.1093/ibd/izz079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Indexed: 12/19/2022]
Abstract
BACKGROUND The decision to either escalate medical therapy or proceed to ileocecal resection (ICR) in patients with terminal ileal Crohn disease (CD) remains largely subjective. We sought to develop a risk score for predicting ICR at 1 year from computed tomography or magnetic resonance enterography (CTE/MRE). METHODS We conducted a retrospective cohort study including all consecutive adult (> 18 years) patients with imaging findings of terminal ileal CD (Montreal classification: B1, inflammatory predominant; B2, stricturing; or B3, penetrating) on CTE/MRE between January 1, 2016, and December 31, 2016. The risk for ICR at 6 months and at 1 year of CTE/MRE and risk factors associated with ICR, including demographics, CD-specific immunosuppressive therapeutics, and disease presentation at the time of imaging, were determined. RESULTS Of 559 patients, 121 (21.6%) underwent ICR during follow-up (1.4 years [IQR 0.21-1.64 years]); the risk for ICR at 6 months and at 1 year was 18.2% (95% CI 14.7%-21.6%) and 20.5% (95% CI 16.8%-24.1%), respectively. Multivariable analysis revealed Montreal classification (B2, hazard ratio [HR] 2.73, and B3, HR 6.80, both P < 0.0001), upstream bowel dilation (HR 3.06, P < 0.0001), and younger age (19-29 years reference, 30-44 years, HR 0.83 [P = 0.40]; 45-59 years, HR 0.58 [P = 0.04], and 60+ years, HR 0.45 [P = 0.01]) to significantly increase the likelihood of ICR. A predictive nomogram for interval ICR was developed based on these significant variables. CONCLUSIONS The presence of CD strictures, penetrating complications, and upstream bowel dilation on CTE/MRE, combined with young age, significantly predict ICR. The suggested risk model may facilitate objective therapeutic decision-making.
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Affiliation(s)
- Fabian Grass
- Department of Colon and Rectal Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Joel G Fletcher
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Ahmad Alsughayer
- Department of Colon and Rectal Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Molly Petersen
- Department of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, Minnesota, USA
| | - David H Bruining
- Department of Gastroenterology, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Kellie L Mathis
- Department of Colon and Rectal Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Amy L Lightner
- Department of Colon and Rectal Surgery, Mayo Clinic, Rochester, Minnesota, USA
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123
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Kim J, Kim SH, Kim TO. Evaluation of CT enterography findings for endoscopic complete remission after anti-TNF-α therapy in patients with Crohn's disease. Acta Radiol 2019; 60:1200-1208. [PMID: 30628841 DOI: 10.1177/0284185118820062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Jieun Kim
- Department of Radiology, Inje University College of Medicine, Haeundae Paik Hospital, Busan, Republic of Korea
| | - Seung Ho Kim
- Department of Radiology, Inje University College of Medicine, Haeundae Paik Hospital, Busan, Republic of Korea
| | - Tae Oh Kim
- Department of Internal Medicine, Inje University College of Medicine, Haeundae Paik Hospital, Busan, Republic of Korea
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124
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Yu H, Shen YQ, Tan FQ, Zhou ZL, Li Z, Hu DY, Morelli JN. Quantitative diffusion-weighted magnetic resonance enterography in ileal Crohn's disease: A systematic analysis of intra and interobserver reproducibility. World J Gastroenterol 2019; 25:3619-3633. [PMID: 31367161 PMCID: PMC6658399 DOI: 10.3748/wjg.v25.i27.3619] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 05/20/2019] [Accepted: 06/08/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Magnetic resonance enterography (MRE) is increasingly attractive as a noninvasive and radiation-free tool for assessing Crohn's disease (CD). Diffusion-weighted imaging (DWI) is recommended as an optional MRE sequence for CD by the European Society of Gastrointestinal and Abdominal Radiology, and has shown a superb potential as a quantitative modality for bowel inflammation evaluation. However, the measurement reproducibility of quantitative DWI analysis in MRE has not been ascertained so far. To facilitate the application of quantitative diffusion-weighted MRE in the clinical routine, systematic investigations of the intra and interobserver reproducibility of DWI quantitative parameters should be performed. AIM To evaluate the intra and interobserver reproducibility of quantitative analysis for diffusion-weighted MRE (DW-MRE) in ileal CD. METHODS Forty-four subjects (21 with CD and 23 control subjects) who underwent ileocolonoscopy and DW-MRE (b = 800 s/mm2) within one week were included. Two radiologists independently measured apparent diffusion coefficients (ADC) of the terminal ileum and signal intensity ratio (SR) of the terminal ileum to ipsilateral psoas muscle on DWI images (b = 800 s/mm2). Between- and within-reader agreements were assessed using intraclass correlation coefficients (ICC), coefficients of variation (CoV), and 95% limits of agreement of Bland-Altman plots (BA-LA LoA). Diagnostic performances of ADC and SR for identifying inflamed terminal ileum from the normal were evaluated by receiver operating characteristic (ROC) curve analysis. RESULTS There were no significant differences in ADC or SR values between the two sessions or between the two radiologists either in the CD or control group (paired t-test, P > 0.05). The intra and interobserver reproducibility of ADC (ICC: 0.952-0.984; CoV: 3.73-6.28%; BA-LA LoA: ±11.27% to ±15.88%) and SR (ICC: 0.969-0.989; CoV: 3.51%-4.64%; BA-LA LoA: ±10.62% to ±15.45%) was excellent for CD. Agreement of ADC measurements was slightly less in control subjects (ICC: 0.641-0.736; CoV: 10.47%-11.43%; BA-LA LoA: ± 26.59% to ± 30.83%). SR of normal terminal ileum demonstrated high intra and interobserver reproducibility (ICC: 0.944-0.974; CoV: 3.73%-6.28%; BA-LA LoA: ± 18.58% to ± 24.43%). ADC and SR of two readers had outstanding diagnostic efficiencies (area under the ROC curve: 0.923-0.988). CONCLUSION Quantitative parameters derived from DW-MRE have good to excellent intra and interobserver agreements with high diagnostic accuracy, and can serve as robust and efficient quantitative biomarkers for CD evaluation.
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Affiliation(s)
- Hao Yu
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Ya-Qi Shen
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Fang-Qin Tan
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Zi-Ling Zhou
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Zhen Li
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Dao-Yu Hu
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - John N Morelli
- St. John’s Medical Center, Tulsa, OK 74133, United States
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125
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The Role of the Radiologist in Determining Disease Severity in Inflammatory Bowel Diseases. Gastrointest Endosc Clin N Am 2019; 29:447-470. [PMID: 31078247 DOI: 10.1016/j.giec.2019.02.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Crohn's disease and ulcerative colitis are chronic inflammatory diseases that lead to progressive bowel damage including the development of stricturing and penetrating complications. Increasingly, cross-sectional imaging with computed tomography or magnetic resonance scans have emerged as leading tools to: (1) assess disease activity; (2) monitor response to therapy or disease recurrence; and (3) identify disease-related complications. Several validated radiological scoring systems have been developed to quantify cross-sectional and longitudinal inflammatory burden in these diseases and to monitor response to treatment. Bowel ultrasound is also a simple and inexpensive tool but is operator dependent in its performance.
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126
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Dhyani M, Joshi N, Bemelman WA, Gee MS, Yajnik V, D’Hoore A, Traverso G, Donowitz M, Mostoslavsky G, Lu TK, Lineberry N, Niessen HG, Peer D, Braun J, Delaney CP, Dubinsky MC, Guillory AN, Pereira M, Shtraizent N, Honig G, Polk DB, Hurtado-Lorenzo A, Karp JM, Michelassi F. Challenges in IBD Research: Novel Technologies. Inflamm Bowel Dis 2019; 25:S24-S30. [PMID: 31095703 PMCID: PMC6787667 DOI: 10.1093/ibd/izz077] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Indexed: 12/15/2022]
Abstract
Novel technologies is part of five focus areas of the Challenges in IBD research document, which also includes preclinical human IBD mechanisms, environmental triggers, precision medicine and pragmatic clinical research. The Challenges in IBD research document provides a comprehensive overview of current gaps in inflammatory bowel diseases (IBD) research and delivers actionable approaches to address them. It is the result of a multidisciplinary input from scientists, clinicians, patients, and funders, and represents a valuable resource for patient centric research prioritization. In particular, the novel technologies section is focused on prioritizing unmet clinical needs in IBD that will benefit from novel technologies applied to: 1) non-invasive detection and monitoring of active inflammation and assessment of treatment response; 2) mucosal targeted drug delivery systems; and 3) prevention of post-operative septic complications and treatment of fistulizing complications. Proposed approaches include development of multiparametric imaging modalities and biosensors, to enable non invasive or minimally invasive detection of pro-inflammatory signals to monitor disease activity and treatment responses. Additionally, technologies for local drug delivery to control unremitting disease and increase treatment efficacy while decreasing systemic exposure are also proposed. Finally, research on biopolymers and other sealant technologies to promote post-surgical healing; and devices to control anastomotic leakage and prevent post-surgical complications and recurrences are also needed.
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Affiliation(s)
- Manish Dhyani
- Lahey Hospital & Medical Center, Burlington, Massachusetts
| | - Nitin Joshi
- Brigham and Women’s Hospital, Boston, Massachusetts
| | | | - Michael S Gee
- Massachusetts General Hospital, Boston, Massachusetts
| | - Vijay Yajnik
- Takeda Pharmaceutical Company, Boston, Massachusetts
| | - André D’Hoore
- University Hospital Gasthuisberg and University of Leuven, Leuven, Belgium
| | - Giovanni Traverso
- Brigham and Women’s Hospital, Harvard Medical School and Massachusetts Institute of Technology, Boston, Massachusetts
| | - Mark Donowitz
- Johns Hopkins University School of Medicine, Baltimore, Maryland
| | | | - Timothy K Lu
- Massachusetts Institute of Technology, Cambridge, Massachusetts
| | | | - Heiko G Niessen
- Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Dan Peer
- School of Molecular Cell Biology and Biotechnology, Tel Aviv University, Tel Aviv, Israel
| | - Jonathan Braun
- Inflammatory Bowel and Immunobiology Research Institute, Cedars-Sinai, Los Angeles, California
| | | | | | | | | | | | - Gerard Honig
- Crohn’s & Colitis Foundation, New York, New York
| | - David Brent Polk
- Department of Biochemistry and Molecular Biology, University of Southern California,Department of Pediatrics, Children’s Hospital Los Angeles, Los Angeles, California
| | - Andrés Hurtado-Lorenzo
- Crohn’s & Colitis Foundation, New York, New York,Address correspondence to: Andrés Hurtado-Lorenzo, PhD, 733 3rd Ave Suite 510, New York, NY USA 10017 ()
| | - Jeffrey M Karp
- Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Harvard-MIT Division of Health Sciences and Technology, Broad Institute and Harvard Stem Cell Institute, Boston, Massachusetts
| | - Fabrizio Michelassi
- New York-Presbyterian Hospital and Weill Cornell School of Medicine, New York, New York
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127
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Taylor SA, Rieder F, Fletcher JG. Differences in the imaging of Crohn's disease patients between North America and Europe: are we ready to bridge the divide? Abdom Radiol (NY) 2019; 44:1637-1643. [PMID: 30580391 DOI: 10.1007/s00261-018-1872-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The emphasis of treatment in Crohn's disease has evolved from a reactive model to "treat-to-target" approaches. Cross-sectional imaging has rapidly evolved in parallel, with a growing evidence base supporting its abilities for diagnosis, monitoring and prognostication. Whilst there are differences in emphasis between Europe and North America, particularly around the type of imaging modalities and patterns of multidisciplinary care, there is increasing convergence. This perspective piece provides an overview of the evolving role of cross-sectional imaging in Crohn's disease, discusses practice differences between North America and Europe and provides suggestions on areas for future collaboration and research priorities.
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Affiliation(s)
- Stuart A Taylor
- Centre for Medical Imaging, University College London, Charles Bell House, 43-45 Foley Street, London, W1W 7TS, UK.
| | - Florian Rieder
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Joel G Fletcher
- Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA
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128
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Abstract
PURPOSE OF REVIEW Strictures of the small bowel are an underdiagnosed entity with significant morbidity because of obstruction and risk of perforation and penetrating disease. RECENT FINDINGS Recent advances in imaging, enteroscopy, and therapeutic advances particularly in Crohn's disease have enabled gastroenterologists to target and individualize management of small bowel strictures, preventing untimely surgery and complications. SUMMARY All patients with obstructive symptoms, suspected small bowel disease, and negative panendoscopy should be evaluated for small intestinal strictures with cross-sectional imaging and considered for capsule endoscopy. Furthermore, the role of device-assisted enteroscopy, initially employed as a diagnostic tool, has evolved into triaging and delivering further medical and interventional treatments.
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Affiliation(s)
- Deniz Durmush
- Prince of Wales Clinical School, UNSW Medicine, Gastrointestinal and Liver Unit, Prince of Wales Hospital, Randwick
| | - Arthur J Kaffes
- AW Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital, RPA Medical Centre, Camperdown, Sydney, New South Wales, Australia
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129
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Wu J, Lubman DM, Kugathasan S, Denson LA, Hyams JS, Dubinsky MC, Griffiths A, Baldassano RN, Noe JD, Rabizadeh S, Gulati AS, Rosh J, Crandall WV, Higgins PD, Stidham RW. Serum Protein Biomarkers of Fibrosis Aid in Risk Stratification of Future Stricturing Complications in Pediatric Crohn's Disease. Am J Gastroenterol 2019; 114:777-785. [PMID: 31058681 PMCID: PMC6532424 DOI: 10.14309/ajg.0000000000000237] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Avoiding fibrostenotic complications is of paramount concern in the management of Crohn's disease (CD). We sought to investigate the association of candidate biomarkers of fibrosis collected at diagnosis with the future development of fibrostenotic CD. METHODS Using the Risk Stratification and Identification of Immunogenetic and Microbial Markers of Rapid Disease Progression in Children with Crohn's Disease cohort, a multicenter prospective observational pediatric inception cohort, subjects with an inflammatory phenotype (B1) at diagnosis who later converted to a stricturing phenotype (B2) within 3 years were compared with those who remained B1. Serum collected at diagnosis underwent both parallel reaction monitoring-targeted proteomic analysis and conventional enzyme-linked immunosorbent assay for 10 candidate biomarkers of intestinal fibrosis. Cox proportional hazard regression was used for multivariable analysis of time-dependent outcomes. RESULTS In 116 subjects 58 subjects with verified B1 phenotype at diagnosis who later converted to B2 disease were compared with 58 subjects who remained B1 over 3 years of follow-up. Extracellular matrix protein 1 (ECM1) levels in the upper quartile (hazard ratio [HR] 3.43, 95% confidence limit [CL] 1.33, 8.42) were associated with future fibrostenotic disease. ASCA IgA (HR 4.99, 95% CL 1.50, 16.68) and CBir levels (HR 5.19, 95% CL 1.83, 14.74) were also associated with future intestinal fibrostenosis, although ECM1 continued to demonstrate independent association with conversion to B2 even with adjustment for serologies in multivariable analysis (HR 5.33, 95% CL 1.29, 22.13). CONCLUSIONS ECM1 and other biomarkers of fibrosis may aid in determining the risk of uncomplicated inflammatory disease converting to B2 stricturing phenotypes in children with CD. Prospective validation studies to verify test performance and optimize clinical utilization are needed before clinical implementation.
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Affiliation(s)
- Jing Wu
- Department of Surgery, University of Michigan, Ann Arbor, MI
| | - David M. Lubman
- Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Subra Kugathasan
- Division of Pediatric Gastroenterology, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA
| | - Lee A. Denson
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Jeffrey S. Hyams
- Division of Digestive Diseases, Hepatology, and Nutrition, Department of Pediatrics, Connecticut Children’s Medical Center, Hartford, CT
| | - Marla C. Dubinsky
- Division of Pediatric Gastroenterology, Department of Pediatrics, Mount Sinai Hospital, New York, NY
| | - Anne Griffiths
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Canada
| | - Robert N. Baldassano
- Division of Pediatric Gastroenterology, Department of Pediatrics, Children’s Hospital of Pennsylvania, Philadelphia, PA
| | - Joshua D. Noe
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI
| | - Shervin Rabizadeh
- Division of Pediatric Gastroenterology, Department of Pediatrics, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Ajay S. Gulati
- Division of Pediatric Gastroenterology, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Joel Rosh
- Department of Pediatrics, Department of Pediatrics, Goryeb Children’s Hospital, Morristown, NJ
| | - Wallace V. Crandall
- Division of Pediatric Gastroenterology, Department of Pediatrics, Nationwide Children’s Hospital, The Ohio State University College of Medicine, Columbus, OH
| | - Peter D.R. Higgins
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
| | - Ryan W. Stidham
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
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130
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Mao R, Kurada S, Gordon IO, Baker ME, Gandhi N, McDonald C, Coffey JC, Rieder F. The Mesenteric Fat and Intestinal Muscle Interface: Creeping Fat Influencing Stricture Formation in Crohn's Disease. Inflamm Bowel Dis 2019; 25:421-426. [PMID: 30346528 DOI: 10.1093/ibd/izy331] [Citation(s) in RCA: 130] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Indexed: 12/12/2022]
Abstract
Adipose tissue is present in close proximity to various organs in the human body. One prominent example is fat contained in the mesentery that is contiguous with all abdominal digestive organs including the intestine. Despite the fact that mesenteric fat-wrapping around the inflamed gut (so called "creeping fat") was described as a characteristic feature of Crohn's disease (CD) in the early 1930s, the functional implications of creeping fat have received only recent attention. As a potent producer of fatty acids, cytokines, growth factors, and adipokines, creeping fat plays an important role in regulation of immunity and inflammation. Increasing evidence points to a link between creeping fat and intestinal inflammation in CD, where histopathologic evaluation shows a significant association between creeping fat and connective tissue changes in the bowel wall, such as muscular hypertrophy, fibrosis, and stricture formation. In addition, emerging mechanistic data indicate a link between creeping fat, muscularis propria hyperplasia, and stricturing disease. Information on fat-mesenchymal interactions in other organs could provide clues to fill the fundamental knowledge gap on the role of distinct components of creeping fat in intestinal fibrosis and stricture formation. Future studies will provide important new information that in turn could lead to novel therapeutic agents aimed at prevention or treatment of CD-associated fibrosis and stricture formation.
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Affiliation(s)
- Ren Mao
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Sun Yat-sen University, China.,Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute.,Department of Inflammation and Immunity, Lerner Research Institute
| | - Satya Kurada
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute.,Department of Inflammation and Immunity, Lerner Research Institute
| | - Ilyssa O Gordon
- Department of Pathology, Robert J. Tomsich Pathology & Laboratory Medicine Institute
| | - Mark E Baker
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute.,Section of Abdominal Imaging, Imaging Institute, The Cleveland Clinic Foundation, Cleveland, Ohio
| | - Namita Gandhi
- Section of Abdominal Imaging, Imaging Institute, The Cleveland Clinic Foundation, Cleveland, Ohio
| | | | - J Calvin Coffey
- Department of Surgery, Graduate Entry Medical School, University Hospital Limerick Group, Centre for Interventions in Infection, Inflammation and Immunity, University of Limerick, Limerick, Ireland
| | - Florian Rieder
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute.,Department of Inflammation and Immunity, Lerner Research Institute
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131
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Deepak P, Fowler KJ, Fletcher JG, Bruining DH. Novel Imaging Approaches in Inflammatory Bowel Diseases. Inflamm Bowel Dis 2019; 25:248-260. [PMID: 30010908 DOI: 10.1093/ibd/izy239] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Indexed: 12/12/2022]
Abstract
Inflammatory bowel diseases are chronic autoimmune conditions of the gastrointestinal tract, mainly grouped into ulcerative colitis or Crohn's disease. Traditionally, symptoms have been used to guide IBD management, but this approach is fatally flawed, as symptoms don't correlate with disease activity and often fail to predict disease complications, especially with Crohn's disease. Hence, there is increasing recognition of the need for treatment algorithms based on objective measures of bowel inflammation. In this review, we will focus on advancements in the endoscopic and radiological imaging armamentarium that allow detailed assessments from intestinal mucosa to mesentery.
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Affiliation(s)
- Parakkal Deepak
- Division of Gastroenterology, John T. Milliken Department of Medicine, Washington University in St. Louis School of Medicine, St. Louis, Missouri
| | - Kathryn J Fowler
- Department of Radiology, Washington University in St. Louis School of Medicine, St. Louis, Missouri
| | - Joel G Fletcher
- Division of Abdominal Imaging, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - David H Bruining
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, Rochester, Minnesota
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132
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How We Do It: Creating Consistent Structure and Content in Abdominal Radiology Report Templates. AJR Am J Roentgenol 2019; 212:490-496. [PMID: 30620681 DOI: 10.2214/ajr.18.20368] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVE The purposes of this article are to describe the creation of template report formats and content for a variety of abdominal and pelvic CT and MRI examinations and discuss a review-of-systems approach to text and avoidance of pitfalls of report templates. CONCLUSION Organ system-specific report templates for CT and MRI incorporate radiologist preferences. Disease-specific report templates are created from these reports to provide a consistent radiologist and referring physician experience across the report templates.
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133
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Megibow AJ. Chronic Pancreatitis: Revisiting Imaging and the Values of Evidence-based Radiologic-Clinical Collaboration. Radiology 2019; 290:216-217. [DOI: 10.1148/radiol.2018182166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alec J. Megibow
- From the Department of Radiology, NYU Langone Health, 550 First Ave, New York, NY 10016
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134
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Rimola J, Alfaro I, Fernández-Clotet A, Castro-Poceiro J, Vas D, Rodríguez S, Masamunt MC, Ordás I, Ricart E, Panés J. Persistent damage on magnetic resonance enterography in patients with Crohn's disease in endoscopic remission. Aliment Pharmacol Ther 2018; 48:1232-1241. [PMID: 30345577 DOI: 10.1111/apt.15013] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 07/03/2018] [Accepted: 09/14/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND In Crohn's disease, it is essential to distinguish between persistent damage and abnormalities that can heal with anti-inflammatory therapy. AIM To assess magnetic resonance enterography (MRE) lesions that persist in patients in long-standing endoscopic remission, analyse their relationship with baseline characteristics, and determine their prognostic implications. METHODS We systematically reviewed pre- and post-treatment MRE findings in patients with Crohn's disease and severe inflammation (segmental CDEIS ≥ 7 or ulcers in at least one segment) who achieved endoscopic remission (CDEIS < 2) after 1 year of treatment with TNF-inhibitors or autologous haematopoietic stem-cell transplantation. Logistic regression analysis was used to identify predictors of persistent abnormalities. RESULTS Endoscopic remission was achieved in 73 intestinal segments in 28 patients (69% females; 9.95 years disease duration, 67.9% inflammatory phenotype; 39.3% ileal location). Creeping fat and intestinal wall fat deposits were unchanged on pre- and post-treatment MRE despite the endoscopic remission. Luminal strictures persisted in 6 out of the 8 segments with baseline strictures, and wall thickening in 23 out of the 72 of segments with thickening at baseline. Predictors of persistent mural thickening were pre-treatment wall thickness > 5.9 mm (OR = 4.38, P = 0.027) and refractory disease prior to baseline (OR = 2.35, P = 0.001). Creeping fat was the only predictor for persistence of creeping fat (OR = 36.43, P < 0.001). Persistence of strictures at MRE is associated with earlier recurrence (P = 0.014). CONCLUSIONS Persistent MRE abnormalities are frequent in patients with Crohn's disease despite achieving endoscopic remission. Significant wall thickening, intestinal fat deposition, strictures, and creeping fat at baseline MRE are signs of established damage.
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Affiliation(s)
- Jordi Rimola
- IBD unit, Radiology Department, Hospital Clínic of Barcelona, Barcelona, Spain.,Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - Ignacio Alfaro
- IBD unit, Gastroenterology Department, Hospital Clínic of Barcelona, CIBERehd, Barcelona, Spain
| | - Agnès Fernández-Clotet
- IBD unit, Gastroenterology Department, Hospital Clínic of Barcelona, CIBERehd, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Jesús Castro-Poceiro
- IBD unit, Gastroenterology Department, Hospital Clínic of Barcelona, CIBERehd, Barcelona, Spain
| | - Daniel Vas
- IBD unit, Radiology Department, Hospital Clínic of Barcelona, Barcelona, Spain
| | - Sonia Rodríguez
- IBD unit, Radiology Department, Hospital Clínic of Barcelona, Barcelona, Spain.,Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - Maria Carme Masamunt
- IBD unit, Gastroenterology Department, Hospital Clínic of Barcelona, CIBERehd, Barcelona, Spain
| | - Ingrid Ordás
- IBD unit, Gastroenterology Department, Hospital Clínic of Barcelona, CIBERehd, Barcelona, Spain.,Faculty of Medicine, University of Barcelona, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Elena Ricart
- IBD unit, Gastroenterology Department, Hospital Clínic of Barcelona, CIBERehd, Barcelona, Spain.,Faculty of Medicine, University of Barcelona, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Julián Panés
- IBD unit, Gastroenterology Department, Hospital Clínic of Barcelona, CIBERehd, Barcelona, Spain.,Faculty of Medicine, University of Barcelona, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
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135
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Lenti MV, Di Sabatino A. Intestinal fibrosis. Mol Aspects Med 2018; 65:100-109. [PMID: 30385174 DOI: 10.1016/j.mam.2018.10.003] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 10/19/2018] [Accepted: 10/28/2018] [Indexed: 02/07/2023]
Abstract
Extensive tissue fibrosis is the end-stage process of a number of chronic conditions affecting the gastrointestinal tract, including inflammatory bowel disease (Crohn's disease, ulcerative colitis), ulcerative jejunoileitis, and radiation enteritis. Fibrogenesis is a physiological, reparative process that may become harmful as a consequence of the persistence of a noxious agent, after an excessive duration of the healing process. In this case, after replacement of dead or injured cells, fibrogenesis continues to substitute normal parenchymal tissue with fibrous connective tissue, leading to uncontrolled scar formation and, ultimately, permanent organ damage, loss of function, and/or strictures. Several mechanisms have been implicated in sustaining the fibrogenic process. Despite their obvious etiological and clinical distinctions, most of the above-mentioned fibrotic disorders have in common a persistent inflammatory stimulus which sustains the production of growth factors, proteolytic enzymes, and pro-fibrogenic cytokines that activate both non-immune (i.e., myofibroblasts, fibroblasts) and immune (i.e., monocytes, macrophages, T-cells) cells, the interactions of which are crucial in the progressive tissue remodeling and destroy. Here we summarize the current status of knowledge regarding the mechanisms implicated in gut fibrosis with a clinical approach, also focusing on possible targets of antifibrogenic therapies.
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Affiliation(s)
- Marco Vincenzo Lenti
- First Department of Internal Medicine, San Matteo Hospital Foundation, University of Pavia, Pavia, Italy
| | - Antonio Di Sabatino
- First Department of Internal Medicine, San Matteo Hospital Foundation, University of Pavia, Pavia, Italy.
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136
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Serban ED. Treat-to-target in Crohn's disease: Will transmural healing become a therapeutic endpoint? World J Clin Cases 2018; 6:501-513. [PMID: 30397606 PMCID: PMC6212605 DOI: 10.12998/wjcc.v6.i12.501] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 08/17/2018] [Accepted: 10/08/2018] [Indexed: 02/05/2023] Open
Abstract
Crohn's disease (CD) represents a chronic transmural inflammatory condition of the gastrointestinal tract, which usually leads to structural damage and significant disability. Deep remission - defined by both clinical and endoscopic remission, signifying mucosal healing - represents the current endpoint in the treat-to-target strategy, significantly improving patients' long-term outcomes. Transmural healing (TH) could be a more effective target, but this possibility remains unclear. This narrative review aims to critically review and summarize the available literature relating TH to long-term outcomes, being the first of its kind and to the best of the author's knowledge. A systematic literature search (from inception to March 31 2018) was performed, using multiple databases, and identifying seven full-text manuscripts. In those studies, long-term favorable outcomes (≥ 52 wk) included sustained clinical remission, as well as fewer therapeutic changes, CD-related hospitalizations, and surgeries. Despite heterogeneous design and methodological limitations, six of the studies demonstrated that TH or intestinal healing (TH plus mucosal healing) were predictive for the aforementioned favorable outcomes. Therefore, TH may become a reasonable therapeutic target and be included in the concept of deep remission. Further prospective, well-designed, multicenter trials aiming to better define the role of TH in personalized therapy for CD and to determine the long-term influence of TH on bowel damage and disability are warranted.
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Affiliation(s)
- Elena Daniela Serban
- 2nd Department of Pediatrics, “Iuliu Hatieganu” University of Medicine and Pharmacy, Emergency Hospital for Children, Cluj-Napoca 400177, Romania
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137
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Lamash Y, Kurugol S, Freiman M, Perez-Rossello JM, Callahan MJ, Bousvaros A, Warfield SK. Curved planar reformatting and convolutional neural network-based segmentation of the small bowel for visualization and quantitative assessment of pediatric Crohn's disease from MRI. J Magn Reson Imaging 2018; 49:1565-1576. [PMID: 30353957 DOI: 10.1002/jmri.26330] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 08/19/2018] [Accepted: 08/20/2018] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Contrast-enhanced MRI of the small bowel is an effective imaging sequence for the detection and characterization of disease burden in pediatric Crohn's disease (CD). However, visualization and quantification of disease burden requires scrolling back and forth through 3D images to follow the anatomy of the bowel, and it can be difficult to fully appreciate the extent of disease. PURPOSE To develop and evaluate a method that offers better visualization and quantitative assessment of CD from MRI. STUDY TYPE Retrospective. POPULATION Twenty-three pediatric patients with CD. FIELD STRENGTH/SEQUENCE 1.5T MRI system and T1 -weighted postcontrast VIBE sequence. ASSESSMENT The convolutional neural network (CNN) segmentation of the bowel's lumen, wall, and background was compared with manual boundary delineation. We assessed the reproducibility and the capability of the extracted markers to differentiate between different levels of disease defined after a consensus review by two experienced radiologists. STATISTICAL TESTS The segmentation algorithm was assessed using the Dice similarity coefficient (DSC) and boundary distances between the CNN and manual boundary delineations. The capability of the extracted markers to differentiate between different disease levels was determined using a t-test. The reproducibility of the extracted markers was assessed using the mean relative difference (MRD), Pearson correlation, and Bland-Altman analysis. RESULTS Our CNN exhibited DSCs of 75 ± 18%, 81 ± 8%, and 97 ± 2% for the lumen, wall, and background, respectively. The extracted markers of wall thickness at the location of min radius (P = 0.0013) and the median value of relative contrast enhancement (P = 0.0033) could differentiate active and nonactive disease segments. Other extracted markers could differentiate between segments with strictures and segments without strictures (P < 0.05). The observers' agreement in measuring stricture length was >3 times superior when computed on curved planar reformatting images compared with the conventional scheme. DATA CONCLUSION The results of this study show that the newly developed method is efficient for visualization and assessment of CD. LEVEL OF EVIDENCE 4 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2019;49:1565-1576.
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Affiliation(s)
- Yechiel Lamash
- Computational Radiology Laboratory, Department of Radiology, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts, USA
| | - Sila Kurugol
- Computational Radiology Laboratory, Department of Radiology, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts, USA
| | - Moti Freiman
- Computational Radiology Laboratory, Department of Radiology, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts, USA
| | | | - Michael J Callahan
- Department of Radiology, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts, USA
| | - Athos Bousvaros
- Center for Inflammatory Bowel Disease Treatment and Research, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts, USA
| | - Simon K Warfield
- Computational Radiology Laboratory, Department of Radiology, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts, USA
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138
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Stoner PL, Kamel A, Ayoub F, Tan S, Iqbal A, Glover SC, Zimmermann EM. Perioperative Care of Patients with Inflammatory Bowel Disease: Focus on Nutritional Support. Gastroenterol Res Pract 2018; 2018:7890161. [PMID: 30344603 PMCID: PMC6174741 DOI: 10.1155/2018/7890161] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 08/28/2018] [Indexed: 12/16/2022] Open
Abstract
Patients with inflammatory bowel disease (IBD) commonly require surgery despite the availability of an increasingly large repertoire of powerful immunosuppressive medications for the treatment of IBD. Optimizing patients' care preoperatively is crucial to obtaining good surgical outcomes. This review discusses preoperative assessment and management principles including assessing disease location and activity with cross-sectional or endoscopic imaging, addressing modifiable risk factors (i.e., stopping smoking, weaning steroids, and correcting anemia), and properly managing medications. The major focus of our literature review is the evaluation for malnutrition, a common finding that affects up to 70% of patients with IBD and a well-known, independent risk factor for adverse postoperative outcomes. Our review confirms that whenever feasible, oral or enteral nutrition (EN) is the preferred method of nutritional support; parenteral nutrition (PN) should be reserved for nutritionally deficient IBD patients unable to tolerate EN. In selected patients, recent data demonstrated that the use of preoperative PN resulted in improved nutritional status, fewer postoperative complications, and reduced disease severity. Our review highlights the need for well-designed, prospective trials investigating perioperative nutritional support in patients with IBD. Future studies should perform modern nutritional assessment, standardize for diet, and include patients with UC since this subset of patients is underrepresented in existing studies. In addition, relevant outcome of interest specific to Crohn's disease (CD) patients such as length of small bowel resected, number of anastomoses, and need for an ostomy should be included as these patients may require repeated small bowel resections.
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Affiliation(s)
- Patrick L. Stoner
- Department of Medicine, Division of Gastroenterology, University of Florida, 2000 SW Archer Rd, Gainesville, FL 32610, USA
| | - Amir Kamel
- Department of Pharmacotherapy, College of Pharmacy, University of Florida, 2000 SW Archer Rd, Gainesville, FL 32610, USA
| | - Fares Ayoub
- Department of Medicine, Division of Gastroenterology, University of Florida, 2000 SW Archer Rd, Gainesville, FL 32610, USA
| | - Sanda Tan
- Department of Surgery, Division of Colorectal Surgery, College of Medicine, University of Florida, 2000 SW Archer Rd, Gainesville, FL 32610, USA
| | - Atif Iqbal
- Department of Surgery, Division of Colorectal Surgery, College of Medicine, University of Florida, 2000 SW Archer Rd, Gainesville, FL 32610, USA
| | - Sarah C. Glover
- Department of Medicine, Division of Gastroenterology, University of Florida, 2000 SW Archer Rd, Gainesville, FL 32610, USA
| | - Ellen M. Zimmermann
- Department of Medicine, Division of Gastroenterology, University of Florida, 2000 SW Archer Rd, Gainesville, FL 32610, USA
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139
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Baker ME, Fletcher JG, Al-Hawary M, Bruining D. Interdisciplinary Updates in Crohn’s Disease Reporting Nomenclature, and Cross-Sectional Disease Monitoring. Radiol Clin North Am 2018; 56:691-707. [DOI: 10.1016/j.rcl.2018.04.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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140
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Park SH, Ye BD, Lee TY, Fletcher JG. Computed Tomography and Magnetic Resonance Small Bowel Enterography: Current Status and Future Trends Focusing on Crohn's Disease. Gastroenterol Clin North Am 2018; 47:475-499. [PMID: 30115433 DOI: 10.1016/j.gtc.2018.04.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Computed tomography enterography (CTE) and magnetic resonance enterography (MRE) are presently state-of-the-art radiologic tests used to examine the small bowel for various indications. This article focuses on CTE and MRE for the evaluation of Crohn disease. The article describes recent efforts to achieve more standardized interpretation of CTE and MRE, summarizes recent research studies investigating the role and impact of CTE and MRE more directly for several different clinical and research issues beyond general diagnostic accuracy, and provides an update on progress in imaging techniques. Also addressed are areas that need further exploration in the future.
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Affiliation(s)
- Seong Ho Park
- Department of Radiology, Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 05505, South Korea.
| | - Byong Duk Ye
- Department of Gastroenterology, Inflammatory Bowel Disease Center, University of Ulsan College of Medicine, Asan Medical Center, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 05505, South Korea
| | - Tae Young Lee
- Department of Radiology, Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 05505, South Korea
| | - Joel G Fletcher
- Department of Radiology, Mayo Clinic, 200 First Street, Southwest, Rochester, MN 55905, USA
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141
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Lamash Y, Kurugol S, Warfield SK. Semi-Automated Extraction of Crohns Disease MR Imaging Markers using a 3D Residual CNN with Distance Prior. DEEP LEARNING IN MEDICAL IMAGE ANALYSIS AND MULTIMODAL LEARNING FOR CLINICAL DECISION SUPPORT : 4TH INTERNATIONAL WORKSHOP, DLMIA 2018, AND 8TH INTERNATIONAL WORKSHOP, ML-CDS 2018, HELD IN CONJUNCTION WITH MICCAI 2018, GRANADA, SPAIN, S... 2018; 11045:218-226. [PMID: 30450491 PMCID: PMC6235454 DOI: 10.1007/978-3-030-00889-5_25] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We propose a 3D residual convolutional neural network (CNN) algorithm with an integrated distance prior for segmenting the small bowel lumen and wall to enable extraction of pediatric Crohns disease (pCD) imaging markers from T1-weighted contrast-enhanced MR images. Our proposed segmentation framework enables, for the first time, to quantitatively assess luminal narrowing and dilation in CD aimed at optimizing surgical decisions as well as analyzing bowel wall thickness and tissue enhancement for assessment of response to therapy. Given seed points along the bowel lumen, the proposed algorithm automatically extracts 3D image patches centered on these points and a distance map from the interpolated centerline. These 3D patches and corresponding distance map are jointly used by the proposed residual CNN architecture to segment the lumen and the wall, and to extract imaging markers. Due to lack of available training data, we also propose a novel and efficient semi-automated segmentation algorithm based on graph-cuts technique as well as a software tool for quickly editing labeled data that was used to train our proposed CNN model. The method which is based on curved planar reformation of the small bowel is also useful for visualizing, manually refining, and measuring pCD imaging markers. In preliminary experiments, our CNN network obtained Dice coefficients of 75 ± 18%, 81 ± 8% and 97 ± 2% for the lumen, wall and background, respectively.
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Affiliation(s)
| | - Sila Kurugol
- Boston Children's Hospital and Harvard Medical School
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Abstract
PURPOSE OF REVIEW Cross-sectional imaging, namely ultrasound, CT and MR enterography, complements clinical and endoscopic monitoring of activity and complications in IBD, and emerging new radiological technologies may have clinical applications in the near future. This review offers an update on the potential role of these new imaging methods in the management of IBD. RECENT FINDINGS Specific MR techniques [diffusion-weighted imaging (DWI), diffusion kurtosis imaging (DKI) and magnetization transfer] allow accurate detection of inflammation (DWI and maybe DKI) and fibrosis (magnetization transfer) in Crohn's disease, without the need of intravenous gadolinium administration. ultrasonography developments (elastography, contrast-enhanced ultrasonography, small intestine contrast ultrasonography and multispectral optoacoustic tomography) are promising techniques for evaluation of fibrosis (elastography) and inflammation (contrast ultrasonography). Dose-reduction techniques in CT allow similar quality imaging and diagnostic accuracy with lower radiation exposure. Hybrid imaging (PET/MR and PET/CT) hold promise for grading inflammation in Crohn's disease. SUMMARY The potential benefits of new cross-sectional imaging techniques in IBD include better inflammation grading, such as identification of mild degree of activity, which may be relevant whenever assessing response to treatment and, of uttermost importance, accurate preoperative detection and grading of fibrosis in stricturing Crohn's disease, facilitating surgical vs. medical therapeutic decisions.
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