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Qualitative sonographic assessment of transmural ileal inflammation in Crohn's disease: a comparison with MRI activity score. Eur J Gastroenterol Hepatol 2021; 33:961-966. [PMID: 33439603 DOI: 10.1097/meg.0000000000002016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Intestinal ultrasound (IUS) is an accurate tool for monitoring Crohn's disease. To date, there is no clinically used validated quantitative ultrasonographic score for assessing disease activity. For magnetic resonance enterography (MRE), the magnetic resonance index of activity (MaRIA) is most used. The goal of this study was to devise a new quantitative IUS score for assessing Crohn's disease inflammation, by using a partial MaRIA score as a reference. METHODS This was a retrospective cohort study. The study cohort included patients with Crohn's disease followed between January 2016 and December 2018. Inclusion criteria were age >18 and <3 months between MRE and IUS. Linear/logistic regression was performed for the correlation of ultrasonographic parameters with MaRIA score. Ultrasonograpic features included: bowel wall thickness, disrupted bowel wall stratification, mesenteric fat proliferation, presence of lymph nodes, hypervascularity present on color Doppler flow, and the presence of complications (strictures, inflammatory mass, and fistula). RESULTS Forty-two patients were included. A stepwise multiple regression model was constructed to predict MaRIA score using ultrasound features. Two variables were found to be independently significant: terminal ileum (TI) thickness (r = 0.68, P = 0.001) and mesenteric fat proliferation (r = 0.45, P = 0.019). A model was constructed as follows: MaRIA = 7 + 2.5 * TI US thickness (mm) + 7 * US fat proliferation (0 = no, 1 = yes). This model has an R2 of 0.51 for explaining the variability in the results. CONCLUSIONS IUS measurements are significantly correlated with MaRIA score in the terminal ileum and a simple computational model can be constructed.
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Laterza L, Ainora ME, Garcovich M, Galasso L, Poscia A, Di Stasio E, Lupascu A, Riccardi L, Scaldaferri F, Armuzzi A, Rapaccini GL, Gasbarrini A, Pompili M, Zocco MA. Bowel contrast-enhanced ultrasound perfusion imaging in the evaluation of Crohn's disease patients undergoing anti-TNFα therapy. Dig Liver Dis 2021; 53:729-737. [PMID: 32900648 DOI: 10.1016/j.dld.2020.08.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 07/01/2020] [Accepted: 08/02/2020] [Indexed: 12/11/2022]
Abstract
AIM To evaluate whether changes in bowel perfusion parameters measured by dynamic-CEUS (D-CEUS) can be used for monitoring response to therapy in active Crohn disease (CD). METHODS Fifty-four CD patients were evaluated with d-CEUS before (T0) and after 2 (T1), 6 (T2) and 12 weeks (T3) of anti-TNFα therapy. Variations from baseline were calculated for: peak intensity, PI; area under the curve, AUC; slope of wash in, Pw; time to peak, TP; mean transit time, MTT (median percentage values) and were correlated with combined endoscopic/clinical response after 12 weeks and clinical relapse within 6 months. RESULTS 70% of patients achieved combined endoscopic/clinical response (responders). The reduction in PI, AUC, Pw and MTT between T1 and T0 was higher in responders. Relapsers (21%) showed significantly lower reduction in delta PI and Pw at T1 and T2. At T3 they showed a new increase in PI and lower reduction in delta Pw. In relapsers, AUC showed a significantly lower decrease at T2 and T3, TP showed a significant reduction at T3 and MTT showed a progressive increase at the different time-points, reaching the statistical significance at T3. CONCLUSIONS d-CEUS might become a reliable predictor of combined endoscopic/clinical response and clinical relapse in CD.
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Affiliation(s)
- Lucrezia Laterza
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS - Catholic University, Rome, Italy
| | - Maria Elena Ainora
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS - Catholic University, Rome, Italy.
| | - Matteo Garcovich
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS - Catholic University, Rome, Italy
| | - Linda Galasso
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS - Catholic University, Rome, Italy
| | | | - Enrico Di Stasio
- Department of Biochemistry and Clinical Biochemistry, Fondazione PoliclinicoUniversitario A. Gemelli IRCCS, Catholic University of Rome, Italy
| | - Andrea Lupascu
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS - Catholic University, Rome, Italy
| | - Laura Riccardi
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS - Catholic University, Rome, Italy
| | - Franco Scaldaferri
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS - Catholic University, Rome, Italy
| | - Alessandro Armuzzi
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS - Catholic University, Rome, Italy
| | - Gian Ludovico Rapaccini
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS - Catholic University, Rome, Italy
| | - Antonio Gasbarrini
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS - Catholic University, Rome, Italy
| | - Maurizio Pompili
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS - Catholic University, Rome, Italy
| | - Maria Assunta Zocco
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS - Catholic University, Rome, Italy
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Ponorac S, Gošnak RD, Urlep D, Ključevšek D. Contrast-enhanced ultrasonography in the evaluation of Crohn disease activity in children: comparison with histopathology. Pediatr Radiol 2021; 51:410-418. [PMID: 33411024 DOI: 10.1007/s00247-020-04870-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 08/06/2020] [Accepted: 10/04/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND Contrast-enhanced ultrasound (US) of the bowel wall has been suggested as an alternative imaging modality for the follow-up of children with Crohn disease. OBJECTIVE To evaluate the diagnostic performance of contrast-enhanced US in the estimation of Crohn disease activity in children with histopathology as the reference standard. MATERIALS AND METHODS In 24 children with Crohn disease confirmed on histopathology, disease activity was evaluated on 40 bowel segments using US score and subjective and quantitative contrast-enhanced US evaluation. Contrast-enhanced US evaluation included enhancement pattern analysis with a graphic representation of log time-intensity curve and calculation of kinetic parameters with the definition of thresholds for disease activity, as determined by receiver operating characteristics curve analysis. The diagnostic accuracy of US with colour Doppler imaging and subjective and quantitative contrast-enhanced US were calculated. RESULTS Moderate or severe inflammation was identified in 18 segments and remission or mild inflammation was identified in 22 segments on histopathology. The quantitative contrast-enhanced US, namely the peak enhancement value, had 72.2% sensitivity (95% confidence interval [CI] 46.5-90.3), 100% specificity (95% CI 84.6-100.0) and 87.5% diagnostic accuracy (95% CI 73.2-95.8) in predicting moderate or severe grade inflammation at histopathology. The sensitivity, specificity and diagnostic accuracy of subjective contrast-enhanced US were 77.8% (95% CI 52.4-93.6), 77.3% (95% CI 54.6-92.2) and 77.5% (95% CI 61.6-89.2), respectively, and of US with colour Doppler imaging were 55.6% (95% CI 30.8-78.5), 86.4% (95% CI 65.1-79.1) and 72.5% (95% CI 56.1-85.4), respectively. CONCLUSION Quantitative contrast-enhanced US has the potential of becoming a complementary method in the evaluation of Crohn disease activity in children. Fibrosis may affect peak enhancement results and underestimate inflammatory activity.
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Affiliation(s)
- Slavojka Ponorac
- Institute of Radiology, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Raja Dahmane Gošnak
- Chair of Biomedicine, Faculty of Health Sciences, University of Ljubljana, Ljubljana, Slovenia
| | - Darja Urlep
- Department of Gastroenterology, Hepatology, and Nutrition, Children's Hospital, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Damjana Ključevšek
- Department of Radiology, Children's Hospital, University Medical Centre Ljubljana, Bohoričeva 20, 1000, Ljubljana, Slovenia.
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Gokli A, Acord MR, Hwang M, Medellin-Kowalewski A, Rubesova E, Anupindi SA. Contrast-enhanced US in Pediatric Patients: Overview of Bowel Applications. Radiographics 2020; 40:1743-1762. [PMID: 33001781 DOI: 10.1148/rg.2020200019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Contrast material-enhanced US is a technique that is approved by the U.S. Food and Drug Administration for the characterization of liver lesions and intravesicular applications in children; however, contrast-enhanced US has several other pediatric applications in clinical practice. The most common application is for patients with inflammatory bowel disease (IBD). Contrast-enhanced US can be used to diagnose IBD, distinguish regions of active or chronic inflammation of the bowel wall, and evaluate associated complications such as abscesses, fistulas, and strictures. Dynamic contrast material evaluation provides qualitative and quantitative information about mural and mesenteric blood flow, which is essential in the determination of disease activity in these patients. It also has the potential to provide a means of monitoring the response to therapy beyond endoscopy or MR enterography. In addition to its use for IBD, contrast-enhanced US can be used to assess for bowel perfusion when problem solving in patients with necrotizing enterocolitis, neonatal bowel infarction, or intussusception. It is a useful imaging technique to fortify diagnoses that may otherwise be indeterminate, such as appendicitis, epiploic appendagitis, intraluminal bowel masses, and complex cysts. Finally, innovative applications such as shear-wave elastography have the potential to provide information about the stiffness of the bowel wall. Online supplemental material is available for this article. ©RSNA, 2020 See discussion on this article by Watson and Humphries.
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Affiliation(s)
- Ami Gokli
- From the Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104 (A.G., M.R.A., M.H., S.A.A.); Department of Radiology, University of Calgary, Calgary, Alberta, Canada (A.M.K.); and Department of Radiology, Lucile Packard Children's Hospital, Stanford University, Stanford, Calif (E.R.)
| | - Michael R Acord
- From the Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104 (A.G., M.R.A., M.H., S.A.A.); Department of Radiology, University of Calgary, Calgary, Alberta, Canada (A.M.K.); and Department of Radiology, Lucile Packard Children's Hospital, Stanford University, Stanford, Calif (E.R.)
| | - Misun Hwang
- From the Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104 (A.G., M.R.A., M.H., S.A.A.); Department of Radiology, University of Calgary, Calgary, Alberta, Canada (A.M.K.); and Department of Radiology, Lucile Packard Children's Hospital, Stanford University, Stanford, Calif (E.R.)
| | - Alexandra Medellin-Kowalewski
- From the Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104 (A.G., M.R.A., M.H., S.A.A.); Department of Radiology, University of Calgary, Calgary, Alberta, Canada (A.M.K.); and Department of Radiology, Lucile Packard Children's Hospital, Stanford University, Stanford, Calif (E.R.)
| | - Erika Rubesova
- From the Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104 (A.G., M.R.A., M.H., S.A.A.); Department of Radiology, University of Calgary, Calgary, Alberta, Canada (A.M.K.); and Department of Radiology, Lucile Packard Children's Hospital, Stanford University, Stanford, Calif (E.R.)
| | - Sudha A Anupindi
- From the Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104 (A.G., M.R.A., M.H., S.A.A.); Department of Radiology, University of Calgary, Calgary, Alberta, Canada (A.M.K.); and Department of Radiology, Lucile Packard Children's Hospital, Stanford University, Stanford, Calif (E.R.)
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Kim DH, Chang KJ, Fowler KJ, Cash BD, Garcia EM, Kambadakone AR, Levy AD, Liu PS, Mace SE, Marin D, Moreno C, Peterson CM, Pietryga JA, Solnes LB, Weinstein S, Carucci LR. ACR Appropriateness Criteria® Crohn Disease. J Am Coll Radiol 2020; 17:S81-S99. [PMID: 32370980 DOI: 10.1016/j.jacr.2020.01.030] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 01/22/2020] [Indexed: 02/08/2023]
Abstract
Three common clinical scenarios involving use of imaging in Crohn disease are covered. These include the initial evaluation of Crohn disease when the diagnosis has not been previously established, the evaluation for anticipated exacerbation of known disease, and the evaluation of disease activity during therapy monitoring. The appropriateness of a given imaging modality for each scenario is rated as one of three categories (usually appropriate, may be appropriate, usually not appropriate) to help guide evaluation. Pediatric presentation of Crohn disease and the appropriateness of imaging are not covered in this document. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where evidence is lacking or equivocal, expert opinion may supplement the available evidence to recommend imaging or treatment.
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Affiliation(s)
- David H Kim
- Panel Chair, University of Wisconsin Hospital & Clinics, Madison, Wisconsin.
| | | | - Kathryn J Fowler
- Panel Vice-Chair, University of California San Diego, San Diego, California
| | - Brooks D Cash
- University of Texas Health Science Center at Houston and McGovern Medical School, Houston, Texas; American Gastroenterological Association
| | - Evelyn M Garcia
- Virginia Tech Carilion School of Medicine, Roanoke, Virginia
| | | | - Angela D Levy
- Medstar Georgetown University Hospital, Washington, District of Columbia
| | | | - Sharon E Mace
- Cleveland Clinic, Cleveland, Ohio; American College of Emergency Physicians
| | - Daniele Marin
- Duke University Medical Center, Durham, North Carolina
| | | | | | | | | | | | - Laura R Carucci
- Specialty Chair, Virginia Commonwealth University Medical Center, Richmond, Virginia
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6
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Zezos P, Zittan E, Islam S, Hudson J, Ben-Bassat O, Nazarian A, Steinhart HA, Silverberg MS, Atri M. Associations between quantitative evaluation of bowel wall microvascular flow by contrast-enhanced ultrasound and indices of disease activity in Crohn's disease patients using both bolus and infusion techniques. JOURNAL OF CLINICAL ULTRASOUND : JCU 2019; 47:453-460. [PMID: 31343081 DOI: 10.1002/jcu.22763] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 05/13/2019] [Accepted: 06/24/2019] [Indexed: 06/10/2023]
Abstract
PURPOSE The aim is to investigate whether baseline contrast-enhanced ultrasound (CEUS) correlates with indices of activity in Crohn's disease (CD) and can predict response to medical treatment. METHODS In this prospective study, symptomatic CD patients underwent baseline CEUS performed with Definity using both bolus and infusion methods. Time-intensity curves (TIC), peak intensity (PI), and area under curve (AUC) from a region of interest over the diseased bowel were calculated for both bolus and infusion acquisitions. We used Mann-Whitney U test for continuous and chi-square/two-tailed Fisher's exact test for categorical variable comparison and Spearman's correlation coefficient to correlate clinical score and CEUS kinetic parameters. RESULTS Twenty-one patients (9 men, 12 women, median age 32 years) were accrued. Fifteen patients had clinically active disease defined as Harvey-Bradshaw Index (HBI) score ≥5. Median values of baseline CEUS parameters PI (bolus: 26 vs 8.86; P = .023 and perfusion: 7.6 vs 3.2; P = .009) and AUC (bolus: 769 vs 248.8; P = .036 and perfusion: 188.9 vs 73.9; P = .012) differed significantly in patients with active vs inactive disease. Nine patients with active disease underwent escalated or new treatment. Five were nonresponders. Responders had higher median values of baseline parameters (PI, bolus: 35 vs 18.8; P = .556, and perfusion: 7.6 vs 3.9; P = 190), (AUC, bolus: 1473.9 vs 314; P = .111, and perfusion: 154.7 vs 74.4, P = .286). CONCLUSIONS CEUS kinetic parameters correlate with clinical and laboratory indices and are significantly higher in patients with active disease. The responders had higher CEUS kinetic parameters than nonresponders that did not reach statistical significance in our small cohort.
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Affiliation(s)
- Petros Zezos
- Zane Cohen Centre for Digestive Diseases, Mount Sinai Hospital, University of Toronto, Division of Gastroenterology, Toronto, Canada
- Mount Sinai Hospital, Lunenfeld-Tanenbaum Research Institute, Toronto, Canada
| | - Eran Zittan
- Zane Cohen Centre for Digestive Diseases, Mount Sinai Hospital, University of Toronto, Division of Gastroenterology, Toronto, Canada
- Mount Sinai Hospital, Lunenfeld-Tanenbaum Research Institute, Toronto, Canada
| | - Shadman Islam
- Joint Department of Medical Imaging, University of Toronto, Toronto, Canada
| | - John Hudson
- Joint Department of Medical Imaging, University of Toronto, Toronto, Canada
| | - Ofer Ben-Bassat
- Zane Cohen Centre for Digestive Diseases, Mount Sinai Hospital, University of Toronto, Division of Gastroenterology, Toronto, Canada
- Mount Sinai Hospital, Lunenfeld-Tanenbaum Research Institute, Toronto, Canada
| | - Amin Nazarian
- Mount Sinai Hospital, Lunenfeld-Tanenbaum Research Institute, Toronto, Canada
| | - Hillary A Steinhart
- Zane Cohen Centre for Digestive Diseases, Mount Sinai Hospital, University of Toronto, Division of Gastroenterology, Toronto, Canada
| | - Mark S Silverberg
- Zane Cohen Centre for Digestive Diseases, Mount Sinai Hospital, University of Toronto, Division of Gastroenterology, Toronto, Canada
- Mount Sinai Hospital, Lunenfeld-Tanenbaum Research Institute, Toronto, Canada
| | - Mostafa Atri
- Joint Department of Medical Imaging, University of Toronto, Toronto, Canada
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Low-Dose Computed Tomography for the Optimization of Radiation Dose Exposure in Patients with Crohn's Disease. Gastroenterol Res Pract 2018; 2018:1768716. [PMID: 30515203 PMCID: PMC6234436 DOI: 10.1155/2018/1768716] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 09/03/2018] [Accepted: 09/30/2018] [Indexed: 12/13/2022] Open
Abstract
Magnetic resonance imaging (MRI) is the mainstay method for the radiological imaging of the small bowel in patients with inflammatory bowel disease without the use of ionizing radiation. There are circumstances where imaging using ionizing radiation is required, particularly in the acute setting. This usually takes the form of computed tomography (CT). There has been a significant increase in the utilization of computed tomography (CT) for patients with Crohn's disease as patients are frequently diagnosed at a relatively young age and require repeated imaging. Between seven and eleven percent of patients with IBD are exposed to high cumulative effective radiation doses (CEDs) (>35–75 mSv), mostly patients with Crohn's disease (Newnham E 2007, Levi Z 2009, Hou JK 2014, Estay C 2015). This is primarily due to the more widespread and repeated use of CT, which accounts for 77% of radiation dose exposure amongst patients with Crohn's disease (Desmond et al., 2008). Reports of the projected cancer risks from the increasing CT use (Berrington et al., 2007) have led to increased patient awareness regarding the potential health risks from ionizing radiation (Coakley et al., 2011). Our responsibilities as physicians caring for these patients include education regarding radiation risk and, when an investigation that utilizes ionizing radiation is required, to keep radiation doses as low as reasonably achievable: the “ALARA” principle. Recent advances in CT technology have facilitated substantial radiation dose reductions in many clinical settings, and several studies have demonstrated significantly decreased radiation doses in Crohn's disease patients while maintaining diagnostic image quality. However, there is a balance to be struck between reducing radiation exposure and maintaining satisfactory image quality; if radiation dose is reduced excessively, the resulting CT images can be of poor quality and may be nondiagnostic. In this paper, we summarize the available evidence related to imaging of Crohn's disease, radiation exposure, and risk, and we report recent advances in low-dose CT technology that have particular relevance.
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8
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Goertz RS, Klett D, Wildner D, Atreya R, Neurath MF, Strobel D. Quantitative contrast-enhanced ultrasound for monitoring vedolizumab therapy in inflammatory bowel disease patients: a pilot study. Acta Radiol 2018; 59:1149-1156. [PMID: 29345146 DOI: 10.1177/0284185117752032] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Background Microvascularization of the bowel wall can be visualized and quantified non-invasively by software-assisted analysis of derived time-intensity curves. Purpose To perform software-based quantification of bowel wall perfusion using quantitative contrast-enhanced ultrasound (CEUS) according to clinical response in patients with inflammatory bowel disease treated with vedolizumab. Material and Methods In a prospective study, in 18 out of 34 patients, high-frequency ultrasound of bowel wall thickness using color Doppler flow combined with CEUS was performed at baseline and after 14 weeks of treatment with vedolizumab. Clinical activity scores at week 14 were used to differentiate between responders and non-responders. CEUS parameters were calculated by software analysis of the video loops. Results Nine of 18 patients (11 with Crohn's disease and seven with ulcerative colitis) showed response to treatment with vedolizumab. Overall, the responder group showed a significant decrease in the semi-quantitative color Doppler vascularization score. Amplitude-derived CEUS parameters of mural microvascularization such as peak enhancement or wash-in rate decreased in responders, in contrast with non-responders. Time-derived parameters remained stable or increased during treatment in all patients. Conclusion Analysis of bowel microvascularization by CEUS shows statistically significant changes in the wash-in-rate related to response of vedolizumab therapy.
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Affiliation(s)
- Ruediger S Goertz
- Department of Internal Medicine 1, Friedrich-Alexander-University Erlangen-Nuernberg, Erlangen, Germany
| | - Daniel Klett
- Department of Internal Medicine 1, Friedrich-Alexander-University Erlangen-Nuernberg, Erlangen, Germany
| | - Dane Wildner
- Department of Internal Medicine 1, Friedrich-Alexander-University Erlangen-Nuernberg, Erlangen, Germany
| | - Raja Atreya
- Department of Internal Medicine 1, Friedrich-Alexander-University Erlangen-Nuernberg, Erlangen, Germany
| | - Markus F Neurath
- Department of Internal Medicine 1, Friedrich-Alexander-University Erlangen-Nuernberg, Erlangen, Germany
| | - Deike Strobel
- Department of Internal Medicine 1, Friedrich-Alexander-University Erlangen-Nuernberg, Erlangen, Germany
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9
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Nisa K, Lim SY, Osuga T, Yokoyama N, Tamura M, Nagata N, Sasaoka K, Dermlim A, Leela-Arporn R, Morita T, Sasaki N, Morishita K, Nakamura K, Ohta H, Takiguchi M. The effect of sedation with a combination of butorphanol and midazolam on quantitative contrast-enhanced ultrasonography of duodenum in healthy dogs. J Vet Med Sci 2018; 80:453-459. [PMID: 29398670 PMCID: PMC5880825 DOI: 10.1292/jvms.17-0525] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Quantitative contrast-enhanced ultrasonography (CEUS) enables non-invasive and objective evaluation of intestinal perfusion by quantifying the intensity of enhancement on the intestine after microbubble contrast
administration. During CEUS scanning, sedation is sometimes necessary to maintain animal cooperation. Nevertheless, the effect of sedative administration on the canine intestinal CEUS is unknown. This study aimed to
investigate the effect of sedation with a combination of butorphanol and midazolam on the duodenal CEUS-derived perfusion parameters of healthy dogs. For this purpose, duodenum was imaged following contrast
administration (Sonazoid®, 0.01 ml/kg) in six healthy beagles before and after intravenous injection of a combination of butorphanol (0.2 mg/kg) and midazolam (0.1 mg/kg). Furthermore,
hemodynamic parameters including blood pressure and heart rate were recorded during the procedure. Five CEUS derived perfusion parameters including time-to-peak (TTP), peak intensity (PI), area under the curve (AUC),
wash-in and wash-out rates (WiR and WoR, respectively) before and after sedation were statistically compared. The result showed that no significant change was detected in any of perfusion parameters. Systolic and mean
arterial pressures significantly reduced after sedative administration, but diastolic arterial pressure and heart rate did not significantly change. Moreover, no significant partial correlation was observed between
perfusion parameters and hemodynamic parameters. Thus, we concluded that the combination did not cause significant influence in duodenal CEUS perfusion parameters and could be a good option for sedation prior to duodenal
CEUS in debilitated dogs.
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Affiliation(s)
- Khoirun Nisa
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Sue Yee Lim
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan.,Department of Veterinary Clinical Sciences, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
| | - Tatsuyuki Osuga
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Nozomu Yokoyama
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan.,Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Masahiro Tamura
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Noriyuki Nagata
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Kazuyoshi Sasaoka
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Angkhana Dermlim
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Rommaneeya Leela-Arporn
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Tomoya Morita
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Noboru Sasaki
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Keitaro Morishita
- Veterinary Teaching Hospital, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Kensuke Nakamura
- Veterinary Teaching Hospital, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan.,Organization for Promotion of Tenure Track, University of Miyazaki, Miyazaki 889-2192, Japan
| | - Hiroshi Ohta
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Mitsuyoshi Takiguchi
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
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Reddy BK, Delen D, Agrawal RK. Predicting and explaining inflammation in Crohn's disease patients using predictive analytics methods and electronic medical record data. Health Informatics J 2018; 25:1201-1218. [PMID: 29320910 DOI: 10.1177/1460458217751015] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Crohn's disease is among the chronic inflammatory bowel diseases that impact the gastrointestinal tract. Understanding and predicting the severity of inflammation in real-time settings is critical to disease management. Extant literature has primarily focused on studies that are conducted in clinical trial settings to investigate the impact of a drug treatment on the remission status of the disease. This research proposes an analytics methodology where three different types of prediction models are developed to predict and to explain the severity of inflammation in patients diagnosed with Crohn's disease. The results show that machine-learning-based analytic methods such as gradient boosting machines can predict the inflammation severity with a very high accuracy (area under the curve = 92.82%), followed by regularized regression and logistic regression. According to the findings, a combination of baseline laboratory parameters, patient demographic characteristics, and disease location are among the strongest predictors of inflammation severity in Crohn's disease patients.
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11
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Wilkens R, Hagemann-Madsen RH, Peters DA, Nielsen AH, Nørager CB, Glerup H, Krogh K. Validity of Contrast-enhanced Ultrasonography and Dynamic Contrast-enhanced MR Enterography in the Assessment of Transmural Activity and Fibrosis in Crohn's Disease. J Crohns Colitis 2018; 12:48-56. [PMID: 28981627 DOI: 10.1093/ecco-jcc/jjx111] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 08/01/2017] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND AIMS Increased small intestinal wall thickness correlates with both inflammatory activity and fibrosis in Crohn's disease [CD]. Assessment of perfusion holds promise as an objective marker distinguishing between the two conditions. Our primary aim was to determine if relative bowel wall perfusion measurements correlate with histopathological scores for inflammation or fibrosis in CD. METHODS A total of 25 patients were investigated before elective surgery for small intestinal CD. Unenhanced ultrasonography [US] and magnetic resonance enterography [MRE] were applied to describe bowel wall thickness. Perfusion was assessed with contrast-enhanced US [CEUS] and dynamic contrast-enhanced MRE [DCE-MRE]. Histopathology was used as gold standard. RESULTS Compared with histopathology, the mean wall thickness was 0.4 mm greater on US [range -0.3 to 1.0, p = 0.24] and 1.4 mm greater on MR [0.4 to 2.3, p = 0.006]. No correlation was found between the severity of inflammation or fibrosis on histopathology, and either DCE-MRE [r = -0.13, p = 0.54 for inflammation and r = 0.41, p = 0.05 for fibrosis] or CEUS [r = 0.16, p = 0.45 for inflammation and r = -0.28, p = 0.19 for fibrosis]. Wall thickness assessed with US was correlated with both histological inflammation [r = 0.611, p = 0.0012] and fibrosis [r = 0.399, p = 0.048]. The same was not true for MR [r = 0.41, p = 0.047 for inflammation and r = 0.29, p = 0.16 for fibrosis]. CONCLUSIONS Bowel wall thickness assessed with US is a valid marker of inflammation in small intestinal CD. However, relative contrast enhancement of US or of MRE cannot distinguish between inflammatory activity and fibrosis.
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Affiliation(s)
- Rune Wilkens
- University Research Clinic for Innovative Patient Pathways, Silkeborg Regional Hospital, Silkeborg, Denmark.,Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | - Rikke H Hagemann-Madsen
- Department of Clinical Pathology, Lillebaelt Hospital, Vejle, Denmark.,Department of Pathology, Aarhus University Hospital, Aarhus, Denmark
| | - David A Peters
- Department of Clinical Engineering, Aarhus University Hospital, Aarhus, Denmark
| | - Agnete H Nielsen
- University Research Clinic for Innovative Patient Pathways, Silkeborg Regional Hospital, Silkeborg, Denmark
| | - Charlotte B Nørager
- Department of Colorectal Surgery P, Aarhus University Hospital, Aarhus, Denmark
| | - Henning Glerup
- University Research Clinic for Innovative Patient Pathways, Silkeborg Regional Hospital, Silkeborg, Denmark
| | - Klaus Krogh
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
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12
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Nisa K, Lim SY, Shinohara M, Nagata N, Sasaoka K, Dermlim A, Leela-Arporn R, Morita T, Yokoyama N, Osuga T, Sasaki N, Morishita K, Nakamura K, Ohta H, Takiguchi M. Repeatability and reproducibility of quantitative contrast-enhanced ultrasonography for assessing duodenal perfusion in healthy dogs. J Vet Med Sci 2017; 79:1585-1590. [PMID: 28781327 PMCID: PMC5627333 DOI: 10.1292/jvms.17-0174] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Contrast-enhanced ultrasonography (CEUS) with microbubbles as a contrast agent allows the visualization and quantification of tissue perfusion. The assessment of canine intestinal perfusion by quantitative CEUS may provide
valuable information for diagnosing and monitoring chronic intestinal disorders. This study aimed to assess the repeatability (intraday variability) and reproducibility (interday variability) of quantitative duodenal CEUS in
healthy dogs. Six healthy beagles underwent CEUS three times within one day (4-hr intervals) and on two different days (1-week interval). All dogs were sedated with a combination of butorphanol (0.2 mg/kg) and midazolam (0.1
mg/kg) prior to CEUS. The contrast agent (Sonazoid®) was administered using the intravenous bolus method (0.01 ml/kg) for imaging of the duodenum. Time-intensity curves (TIC) were created by drawing
multiple regions of interest (ROIs) in the duodenal mucosa, and perfusion parameters, including the time-to-peak (TTP), peak intensity (PI), area under the curve (AUC), and wash-in and wash-out rates (WiR and WoR, respectively),
were generated. Intraday and interday coefficients of variation (CVs) for TTP, PI, AUC, WiR and WoR were <25% (range, 2.27–23.41%), which indicated that CEUS was feasible for assessing duodenal perfusion in healthy sedated
dogs. A further study of CEUS in dogs with chronic intestinal disorders is necessary to evaluate its clinical applicability.
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Affiliation(s)
- Khoirun Nisa
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Sue Yee Lim
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Masayoshi Shinohara
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Noriyuki Nagata
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Kazuyoshi Sasaoka
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Angkhana Dermlim
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Rommaneeya Leela-Arporn
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Tomoya Morita
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Nozomu Yokoyama
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Tatsuyuki Osuga
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Noboru Sasaki
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Keitaro Morishita
- Veterinary Teaching Hospital, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Kensuke Nakamura
- Veterinary Teaching Hospital, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Hiroshi Ohta
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Mitsuyoshi Takiguchi
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
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Dillman JR, Rubin JM, Johnson LA, Moons DS, Higgins PDR. Can Contrast-Enhanced Sonography Detect Bowel Wall Fibrosis in Mixed Inflammatory and Fibrotic Crohn Disease Lesions in an Animal Model? JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2017; 36:523-530. [PMID: 28072481 PMCID: PMC6557400 DOI: 10.7863/ultra.16.04064] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 06/13/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVES To determine whether contrast-enhanced sonographic quantitative perfusion parameters can detect bowel wall fibrosis in the setting of mixed inflammatory and fibrotic lesions in a Crohn disease animal model. METHODS This study was approved by the institutional Committee on the Use and Care of Animals. Multiple (range, 1-5) 2,4,6-trinitrobenzenesulfonic acid-ethanol enemas were used to create intestinal inflammatory lesions with variable fibrosis in female Lewis rats. Low-mechanical index contrast-enhanced sonography was performed 3 days after the final enema using a 0.2-mL bolus of sulfur hexafluoride microbubbles injected through a tail vein. Contrast-enhanced sonographic data were analyzed with software that converts video data into echo-power (linearized) data. Colorectal lesions were scored for histopathologic inflammation and fibrosis; bowel wall collagen was quantified by Western blotting. The Spearman correlation was used to assess associations between contrast-enhanced sonographic quantitative parameters and bowel wall collagen; the Kruskal-Wallis test was used to compare continuous results between histopathologic groups. RESULTS Thirty-one animals were included in our analysis. Animals were placed into 3 histopathologic cohorts: (1) severe bowel wall inflammation/minimal or no fibrosis (n = 11); (2) severe bowel wall inflammation/moderate fibrosis (n = 9); and (3) severe bowel wall inflammation/severe fibrosis (n = 11). Western blotting showed a significant difference in bowel wall collagen between histopathologic cohorts (P = .0001). There was no correlation between any contrast-enhanced sonographic quantitative parameter and bowel wall collagen (P > .05). There was no difference between histopathologic cohorts for any contrast-enhanced sonographic quantitative parameter (P > .05). CONCLUSIONS Contrast-enhanced sonographic quantitative perfusion parameters failed to effectively detect bowel wall fibrosis in the setting of superimposed inflammation in a Crohn disease animal model.
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Affiliation(s)
- Jonathan R Dillman
- Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Jonathan M Rubin
- Department of Radiology, University of Michigan Health System, Ann Arbor, Michigan, USA
| | - Laura A Johnson
- Department of Internal Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA
| | - David S Moons
- Department of Pathology, University of Michigan Health System, Ann Arbor, Michigan, USA
| | - Peter D R Higgins
- Department of Internal Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA
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14
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Wilkens R, Peters DA, Nielsen AH, Hovgaard VP, Glerup H, Krogh K. Dynamic Contrast-Enhanced Magnetic Resonance Enterography and Dynamic Contrast-Enhanced Ultrasonography in Crohn's Disease: An Observational Comparison Study. Ultrasound Int Open 2017; 3:E13-E24. [PMID: 28286879 PMCID: PMC5340279 DOI: 10.1055/s-0042-123841] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 09/19/2016] [Accepted: 12/04/2016] [Indexed: 12/12/2022] Open
Abstract
Purpose e Cross-sectional imaging methods are important for objective evaluationof small intestinal inflammationinCrohn'sdisease(CD).The primary aim was to compare relative parameters of intestinal perfusion between contrast-enhanced ultrasonography (CEUS) and dynamic contrast-enhanced magnetic resonance enterography (DCE-MRE) in CD. Furthermore, we aimed at testing the repeatability of regions of interest (ROIs) for CEUS. Methods This prospective study included 25 patients: 12 females (age: 37, range: 19-66) with moderate to severe CD and a bowel wall thickness>3mm evaluated with DCE-MRE and CEUS. CEUS bolus injection was performed twice for repeatability and analyzed in VueBox®. Correlations between modalities were described with Spearman's rho, limits of agreement(LoA) and intraclass correlation coefficient(ICC). ROIrepeatability for CEUS was assessed. Results s The correlation between modalities was good and very good for bowel wall thickness (ICC=0.71, P<0.001) and length of the inflamed segment (ICC=0.89, P<0.001). Moderate-weak correlations were found for the time-intensity curve parameters: peak intensity (r=0.59, P=0.006), maximum wash-in-rate (r=0.62, P=0.004), and wash-in perfusion index (r=0.47, P=0.036). Best CEUS repeatability for peak enhancement was a mean difference of 0.73 dB (95% CI: 0.17 to 1.28, P=0.01) and 95% LoA from -3.8 to 5.3 dB. Good quality of curve fit improved LoA to -2.3 to 2.8 dB. Conclusion The relative perfusion of small intestinal CD assessed with DCE-MRE and CEUS shows only a moderate correlation. Applying strict criteria for ROIs is important and allows for good CEUS repeatability.
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Affiliation(s)
- Rune Wilkens
- Divisions of Medicine and Radiology, Diagnostic Centre, Silkeborg Regional
Hospital, University Research Clinic for Innovative Diagnostic Pathways, Silkeborg,
Denmark
- Department of Hepatology and Gastroenterology, Aarhus University Hospital,
Aarhus C, Denmark
| | - David A. Peters
- Department of Clinical Engineering, Aarhus University Hospital, Aarhus N,
Denmark
| | - Agnete H. Nielsen
- Divisions of Medicine and Radiology, Diagnostic Centre, Silkeborg Regional
Hospital, University Research Clinic for Innovative Diagnostic Pathways, Silkeborg,
Denmark
| | - Valeriya P. Hovgaard
- Divisions of Medicine and Radiology, Diagnostic Centre, Silkeborg Regional
Hospital, University Research Clinic for Innovative Diagnostic Pathways, Silkeborg,
Denmark
| | - Henning Glerup
- Divisions of Medicine and Radiology, Diagnostic Centre, Silkeborg Regional
Hospital, University Research Clinic for Innovative Diagnostic Pathways, Silkeborg,
Denmark
| | - Klaus Krogh
- Department of Hepatology and Gastroenterology, Aarhus University Hospital,
Aarhus C, Denmark
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15
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Mocci G, Migaleddu V, Cabras F, Sirigu D, Scanu D, Virgilio G, Marzo M. SICUS and CEUS imaging in Crohn's disease: an update. J Ultrasound 2017; 20:1-9. [PMID: 28298939 DOI: 10.1007/s40477-016-0230-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 11/07/2016] [Indexed: 12/21/2022] Open
Abstract
Endoscopy remains the main technique in the diagnosis and treatment of Crohn's disease (CD); nevertheless, the recent development of innovative and non-invasive imaging techniques has led to a new tool in the exploration of small bowel in CD patients. This paper reviews the available data on ultrasound imaging used for the evaluation of CD, highlighting the role of small intestine contrast-enhanced ultrasonography with the use of oral and intravenous contrast agents.
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Affiliation(s)
| | - Vincenzo Migaleddu
- Sardinian Mediterranean Imaging Research Group, SMIRG No-profit Foundation, Via Gorizia 11, 07100 Sassari, Italy
| | | | - Danilo Sirigu
- Sardinian Mediterranean Imaging Research Group, SMIRG No-profit Foundation, Via Gorizia 11, 07100 Sassari, Italy
| | - Domenico Scanu
- Sardinian Mediterranean Imaging Research Group, SMIRG No-profit Foundation, Via Gorizia 11, 07100 Sassari, Italy
| | - Giuseppe Virgilio
- Sardinian Mediterranean Imaging Research Group, SMIRG No-profit Foundation, Via Gorizia 11, 07100 Sassari, Italy
| | - Manuela Marzo
- Sardinian Mediterranean Imaging Research Group, SMIRG No-profit Foundation, Via Gorizia 11, 07100 Sassari, Italy
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16
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Kljucevsek D, Vidmar D, Urlep D, Dezman R. Dynamic contrast-enhanced ultrasound of the bowel wall with quantitative assessment of Crohn's disease activity in childhood. Radiol Oncol 2016; 50:347-354. [PMID: 27904441 PMCID: PMC5120573 DOI: 10.1515/raon-2015-0042] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Accepted: 06/11/2015] [Indexed: 02/06/2023] Open
Abstract
Background Contrast-enhanced ultrasound (CEUS) has become an established non-invasive, patient-friendly imaging technique which improves the characterization of lesions. In addition, dynamic contrast-enhanced ultrasound (DCE-US) provides valuable information concerning perfusion of examined organs. This review addresses current applications of CEUS in children, focused on DCE-US of the bowel wall in patients with Crohn disease, which enables realtime assessment of the bowel wall vascularity with semi-quantitative and quantitative assessment of disease activity and response to medical treatment. Conclusions Crohn’s disease is a chronic inflammatory relapsing disease. Frequent imaging re-evaluation is necessary. Therefore, imaging should be as little invasive as possible, children friendly with high diagnostic accuracy. US with wide varieties of techniques, including CEUS/DCE-US, can provide an important contribution for diagnosing and monitoring a disease activity. Even if the use of US contrast agent is off-label in children, it is welcome and widely accepted for intravesical use, and a little less for intravenous use, manly in evaluation of parenchymal lesions. To our knowledge this is the first time that the use of DCE-US in the evaluation of activity of small bowel Crohn disease with quantitative assessment of kinetic parameters is being described in children. Even if the results of the value and accuracy of different quantitative kinetic parameters in published studies in adult population often contradict one another there is a great potential of DCE-US to become a part of the entire sonographic evaluation not only in adults, but also in children. Further control studies should be performed.
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Affiliation(s)
- Damjana Kljucevsek
- Radiology Unit, Children's Hospital, University Medical Centre Ljubljana, Slovenia
| | - Dubravka Vidmar
- Institute of Radiology, University Medical Centre Ljubljana, Slovenia
| | - Darja Urlep
- Department of Gastroenterology, Hepatology and Nutrition, Children's Hospital, University Medical Centre Ljubljana, Slovenia
| | - Rok Dezman
- Institute of Radiology, University Medical Centre Ljubljana, Slovenia
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17
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Cheng W, Gao X, Wang W, Zhi M, Tang J, Wen YL, Yu J, Chen Y, Liu X, Yang C, Hu P, Liu G. Preliminary Analysis of Clinical Situations Involved in Quantification of Contrast-Enhanced Ultrasound in Crohn's Disease. ULTRASOUND IN MEDICINE & BIOLOGY 2016; 42:1784-1791. [PMID: 27087694 DOI: 10.1016/j.ultrasmedbio.2016.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Revised: 03/01/2016] [Accepted: 03/03/2016] [Indexed: 06/05/2023]
Abstract
To assess influencing factors for quantitative analysis of contrast-enhanced ultrasound (CEUS) in Crohn's disease (CD), dynamic CEUS examinations from 77 consecutive CD patients were recorded. Peak intensity (PI) values were calculated using the pre-installed quantification software of the ultrasound scanner. The influence of depth, pressure from the ultrasound probe and intraluminal gas was analyzed. The PI value of the anterior wall was lower than that of the posterior wall when the depth was ≤3.4 cm (17.9 dB vs. 21.3 dB; p < 0.05) or evident pressure was exerted (19.1 dB vs. 22.5 dB; p < 0.01). In the presence of intraluminal gas, the PI of the anterior wall was higher than that of the posterior wall (20.7 dB vs. 18.8 dB; p < 0.05). Nevertheless, no significant difference was found between the PI value of anterior and posterior walls when the depth was >3.4 cm (19.8 dB vs. 20.3 dB), moderate pressure was exerted (20.5 dB vs. 21.1 dB) or luminal gas was excluded between the two bowel walls (18.9 dB vs. 21.2 dB; p ≥ 0.05). The factors of depth, pressure from the ultrasound probe and intraluminal gas can affect the quantification results of CEUS. It is preferable to place the region of interest in the posterior wall when luminal gas is absent and in the anterior wall when luminal gas is present. In the latter case, more attention should be paid to reducing pressure by the ultrasound probe.
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Affiliation(s)
- Wenjie Cheng
- Department of Medical Ultrasound, The Sixth Affiliated Hospital of Sun Yat-sen University (Guangdong Gastrointestinal Hospital), Guangzhou, Guangdong, China
| | - Xiang Gao
- Department of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University (Guangdong Gastrointestinal Hospital), Guangzhou, Guangdong, China
| | - Weili Wang
- Department of Medical Ultrasound, The Sixth Affiliated Hospital of Sun Yat-sen University (Guangdong Gastrointestinal Hospital), Guangzhou, Guangdong, China
| | - Min Zhi
- Department of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University (Guangdong Gastrointestinal Hospital), Guangzhou, Guangdong, China
| | - Jian Tang
- Department of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University (Guangdong Gastrointestinal Hospital), Guangzhou, Guangdong, China
| | - Yan-Ling Wen
- Department of Medical Ultrasound, The Sixth Affiliated Hospital of Sun Yat-sen University (Guangdong Gastrointestinal Hospital), Guangzhou, Guangdong, China
| | - Junli Yu
- Department of Medical Ultrasound, The Sixth Affiliated Hospital of Sun Yat-sen University (Guangdong Gastrointestinal Hospital), Guangzhou, Guangdong, China
| | - Yao Chen
- Department of Medical Ultrasound, The Sixth Affiliated Hospital of Sun Yat-sen University (Guangdong Gastrointestinal Hospital), Guangzhou, Guangdong, China
| | - Xiaoyin Liu
- Department of Medical Ultrasound, The Sixth Affiliated Hospital of Sun Yat-sen University (Guangdong Gastrointestinal Hospital), Guangzhou, Guangdong, China
| | - Chuan Yang
- Department of Medical Ultrasound, The Sixth Affiliated Hospital of Sun Yat-sen University (Guangdong Gastrointestinal Hospital), Guangzhou, Guangdong, China
| | - Pinjin Hu
- Department of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University (Guangdong Gastrointestinal Hospital), Guangzhou, Guangdong, China
| | - Guangjian Liu
- Department of Medical Ultrasound, The Sixth Affiliated Hospital of Sun Yat-sen University (Guangdong Gastrointestinal Hospital), Guangzhou, Guangdong, China.
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Knieling F, Waldner MJ. Light and sound - emerging imaging techniques for inflammatory bowel disease. World J Gastroenterol 2016; 22:5642-5654. [PMID: 27433080 PMCID: PMC4932202 DOI: 10.3748/wjg.v22.i25.5642] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 05/02/2016] [Accepted: 05/23/2016] [Indexed: 02/06/2023] Open
Abstract
Patients with inflammatory bowel disease are known to have a high demand of recurrent evaluation for therapy and disease activity. Further, the risk of developing cancer during the disease progression is increasing from year to year. New, mostly non-radiant, quick to perform and quantitative methods are challenging, conventional endoscopy with biopsy as gold standard. Especially, new physical imaging approaches utilizing light and sound waves have facilitated the development of advanced functional and molecular modalities. Besides these advantages they hold the promise to predict personalized therapeutic responses and to spare frequent invasive procedures. Within this article we highlight their potential for initial diagnosis, assessment of disease activity and surveillance of cancer development in established techniques and recent advances such as wide-view full-spectrum endoscopy, chromoendoscopy, autofluorescence endoscopy, endocytoscopy, confocal laser endoscopy, multiphoton endoscopy, molecular imaging endoscopy, B-mode and Doppler ultrasound, contrast-enhanced ultrasound, ultrasound molecular imaging, and elastography.
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19
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Bowel Ultrasonography in the Management of Crohn's Disease. A Review with Recommendations of an International Panel of Experts. Inflamm Bowel Dis 2016; 22:1168-83. [PMID: 26958988 DOI: 10.1097/mib.0000000000000706] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Bowel ultrasonography (US) is considered a useful technique for assessing mural inflammation and complications in Crohn's disease (CD). The aim of this review is to appraise the evidence on the accuracy of bowel US for CD. In addition, we aim to provide recommendations for its optimal use. METHODS Publications were identified by literature search from 1992 to 2014 and selected based on predefined criteria: 15 or more patients; bowel US for diagnosing CD, complications, postoperative recurrence, activity; adequate reference standards; prospective study design; data reported to allow calculation of sensitivity, specificity, agreement, or correlation values; articles published in English. RESULTS The search yielded 655 articles, of which 63 were found to be eligible and retrieved as full-text articles for analysis. Bowel US showed 79.7% sensitivity and 96.7% specificity for the diagnosis of suspected CD, and 89% sensitivity and 94.3% specificity for initial assessment in established patients with CD. Bowel US identified ileal CD with 92.7% sensitivity, 88.2% specificity, and colon CD with 81.8% sensitivity, 95.3% specificity, with lower accuracy for detecting proximal lesions. The oral contrast agent improves the sensitivity and specificity in determining CD lesions and in assessing sites and extent. CONCLUSIONS Bowel US is a tool for evaluation of CD lesions in terms of complications, postoperative recurrence, and monitoring response to medical therapy; it reliably detects postoperative recurrence and complications, as well as offers the possibility of monitoring disease progression.
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20
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Geis S, Prantl L, Schoeneich M, Lamby P, Klein S, Dolderer J, Mueller S, Jung E. Contrast enhanced ultrasound (CEUS) – an unique monitoring technique to assess microvascularization after buried flap transplantation. Clin Hemorheol Microcirc 2016; 62:205-14. [DOI: 10.3233/ch-151964] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- S. Geis
- Center for Plastic-, Hand-, and Reconstructive Surgery, University Hospital Regensburg, Regensburg, Germany
| | - L. Prantl
- Center for Plastic-, Hand-, and Reconstructive Surgery, University Hospital Regensburg, Regensburg, Germany
| | - M. Schoeneich
- Center for Plastic-, Hand-, and Reconstructive Surgery, University Hospital Regensburg, Regensburg, Germany
| | - P. Lamby
- Center for Plastic-, Hand-, and Reconstructive Surgery, University Hospital Regensburg, Regensburg, Germany
| | - S. Klein
- Center for Plastic-, Hand-, and Reconstructive Surgery, University Hospital Regensburg, Regensburg, Germany
| | - J. Dolderer
- Center for Plastic-, Hand-, and Reconstructive Surgery, University Hospital Regensburg, Regensburg, Germany
| | - S. Mueller
- Department of Cranio-Maxillofacial Surgery, University Hospital Regensburg, Regensburg, Germany
| | - E.M. Jung
- Department of Radiology and Interdisciplinary Ultrasound Department, University Hospital Regensburg, Regensburg, Germany
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21
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Abstract
BACKGROUND The diagnosis of inflammatory bowel disease (IBD) is based on a combination of endoscopic, clinical and biochemical investigations as well as cross-sectional imaging. The applications of cross-sectional imaging in IBD are manifold. Ultrasonography has emerged as an important imaging modality in the diagnosis of Crohn's disease (CD) as well as for monitoring disease progression and in the therapeutic response to CD and ulcerative colitis (UC). Key Messages: Ultrasonography is non-invasive, radiation free, cheap, easy to use and well tolerated and accepted by patients. Bowel ultrasonography can be used for the primary diagnosis of CD as it has a similar sensitivity and specificity like that of MRI and CT, particularly in the case of CD. Ultrasonography can also be used to monitor treatment response to therapy and to detect disease recurrence of CD as well as UC. In CD, ultrasonography can also be used to detect complications such as strictures as well as extramural complications, including abscesses and fistulas. Contrast-enhanced ultrasonography is a useful tool that might be helpful to detect certain indications in CD, in particular the differentiation between abscesses and inflammation. CONCLUSION A variety of advantages of bowel ultrasonography over other imaging modalities suggest the more frequent use of this method to manage IBD patients in daily practice. Bowel ultrasonography should be a standard tool in IBD centers.
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Hudson JM, Williams R, Tremblay-Darveau C, Sheeran PS, Milot L, Bjarnason GA, Burns PN. Dynamic contrast enhanced ultrasound for therapy monitoring. Eur J Radiol 2015; 84:1650-7. [DOI: 10.1016/j.ejrad.2015.05.013] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Accepted: 05/10/2015] [Indexed: 11/17/2022]
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Abstract
Ultrasonography (US) is a safe and available real-time, high-resolution imaging method, which during the last decades has been increasingly integrated as a clinical tool in gastroenterology. New US applications have emerged with enforced data software and new technical solutions, including strain evaluation, three-dimensional imaging and use of ultrasound contrast agents. Specific gastroenterologic applications have been developed by combining US with other diagnostic or therapeutic methods, such as endoscopy, manometry, puncture needles, diathermy and stents. US provides detailed structural information about visceral organs without hazard to the patients and can play an important clinical role by reducing the need for invasive procedures. This paper presents different aspects of US in gastroenterology, with a special emphasis on the contribution from Nordic scientists in developing clinical applications.
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Affiliation(s)
- Svein Ødegaard
- Department of Medicine, National Centre for Ultrasound in Gastroenterology, Haukeland University Hospital and Department of Clinical Medicine, University of Bergen , Bergen , Norway
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Sauter B, Beglinger C, Girardin M, Macpherson A, Michetti P, Schoepfer A, Seibold F, Vavricka SR, Rogler G. Monitoring disease activity and progression in Crohn's disease. A Swiss perspective on the IBD ahead 'optimised monitoring' recommendations. Digestion 2015; 89:299-309. [PMID: 25074029 DOI: 10.1159/000360283] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND AIMS The structured IBD Ahead 'Optimised Monitoring' programme was designed to obtain the opinion, insight and advice of gastroenterologists on optimising the monitoring of Crohn's disease activity in four settings: (1) assessment at diagnosis, (2) monitoring in symptomatic patients, (3) monitoring in asymptomatic patients, and (4) the postoperative follow-up. For each of these settings, four monitoring methods were discussed: (a) symptom assessment, (b) endoscopy, (c) laboratory markers, and (d) imaging. Based on literature search and expert opinion compiled during an international consensus meeting, recommendations were given to answer the question 'which diagnostic method, when, and how often'. The International IBD Ahead Expert Panel advised to tailor this guidance to the healthcare system and the special prerequisites of each country. The IBD Ahead Swiss National Steering Committee proposes best-practice recommendations adapted for Switzerland. METHODS The IBD Ahead Steering Committee identified key questions and provided the Swiss Expert Panel with a structured literature research. The expert panel agreed on a set of statements. During an international expert meeting the consolidated outcome of the national meetings was merged into final statements agreed by the participating International and National Steering Committee members - the IBD Ahead 'Optimized Monitoring' Consensus. RESULTS A systematic assessment of symptoms, endoscopy findings, and laboratory markers with special emphasis on faecal calprotectin is deemed necessary even in symptom-free patients. The choice of recommended imaging methods is adapted to the specific situation in Switzerland and highlights the importance of ultrasonography and magnetic resonance imaging besides endoscopy. CONCLUSION The recommendations stress the importance of monitoring disease activity on a regular basis and by objective parameters, such as faecal calprotectin and endoscopy with detailed documentation of findings. Physicians should not rely on symptoms only and adapt the monitoring schedule and choice of options to individual situations.
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Dillman JR, Smith EA, Sanchez RJ, DiPietro MA, DeMatos-Maillard V, Strouse PJ, Darge K. Pediatric Small Bowel Crohn Disease: Correlation of US and MR Enterography. Radiographics 2015; 35:835-48. [PMID: 25839736 DOI: 10.1148/rg.2015140002] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Small bowel Crohn disease is commonly diagnosed during the pediatric period, and recent investigations show that its incidence is increasing in this age group. Diagnosis and follow-up of this condition are commonly based on a combination of patient history and physical examination, disease activity surveys, laboratory assessment, and endoscopy with biopsy, but imaging also plays a central role. Ultrasonography (US) is an underutilized well-tolerated imaging modality for screening and follow-up of small bowel Crohn disease in children and adolescents. US has numerous advantages over computed tomographic (CT) enterography and magnetic resonance (MR) enterography, including low cost and no required use of oral or intravenous contrast material. US also has the potential to provide images with higher spatial resolution than those obtained at CT enterography and MR enterography, allows faster examination than does MR enterography, does not involve ionizing radiation, and does not require sedation or general anesthesia. US accurately depicts small bowel and mesenteric changes related to pediatric Crohn disease, and US findings show a high correlation with MR imaging findings in this patient population.
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Affiliation(s)
- Jonathan R Dillman
- From the Section of Pediatric Radiology, Department of Radiology (J.R.D., E.A.S., R.J.S., M.A.D., P.J.S.), and Division of Pediatric Gastroenterology, Department of Pediatrics and Communicable Diseases (V.D.M.), C.S. Mott Children's Hospital, University of Michigan Health System, 1540 E Hospital Dr, Ann Arbor, MI 48109; and Department of Radiology, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pa (K.D.)
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26
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Abstract
The assessment of extent and severity of IBD is crucial for directing treatment decisions. Clinical symptoms alone are neither sensitive nor specific for the assessment of lesion severity in IBD. Cross-sectional imaging techniques, as well as small-bowel capsule endoscopy (SBCE) and device-assisted enteroscopy, have a high accuracy for assessing the extent of mucosal lesions, and are reliable alternatives to ileocolonoscopy. New endoscopic techniques and devices are emerging for improved follow-up and surveillance. In this Review, we discuss different imaging techniques that are used to assess IBD activity and to survey patients with IBD, and highlight the latest developments in each area. Moreover, technical improvements and new tools that aim to measure intestinal fibrosis, postoperative recurrence, activity indices and endoscopic features are analysed. All of these imaging techniques are aimed at changing the paradigm from symptom-driven to lesion-driven treatment of IBD.
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Bowel perfusion measured with dynamic contrast-enhanced ultrasound predicts treatment outcome in patients with Crohn's disease. Inflamm Bowel Dis 2014; 20:2029-37. [PMID: 25185684 PMCID: PMC4213134 DOI: 10.1097/mib.0000000000000159] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND To improve management of patients with Crohn's disease (CD), objective measurements of the degree of local inflammation in the gastrointestinal wall are needed. Increased microvessel density and perfusion are typical features of acute inflammation and can be estimated with contrast-enhanced ultrasound (CEUS). The aim of the study was to investigate whether CEUS can provide prognostic information about patients treated medically for an acute exacerbation of CD. METHODS Fourteen patients with CD who received medical treatment for acute exacerbation with systemic steroids or tumor necrosis factor-α inhibitors were prospectively recruited. The patients were examined with clinical scoring, blood tests, and CEUS at time 0, 1, 3, and 12 months after initiation of the treatment. Outcome was treatment efficacy or treatment failure defined as change in medical treatment after 1 month or later. The perfusion analysis was performed with a commercially available software program that analyzes the contrast intensity in a selected area, fits the data to a standardized time-intensity curve, and derives several relative perfusion parameters. RESULTS Six of the 14 patients had treatment failure during the study period. There was a significant difference between the groups for peak contrast enhancement (P = 0.013), rate of wash-in (P = 0.020) and wash-out (P = 0.008), and the area under the time-intensity curve in the wash-in phase (0.013) at the examination 1 month after the start of treatment. CONCLUSIONS Perfusion analysis of the intestinal wall with CEUS 1 month after starting treatment in patients with CD can provide prognostic information regarding treatment efficacy.
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Radiation exposure in gastroenterology: improving patient and staff protection. Am J Gastroenterol 2014; 109:1180-94. [PMID: 24842339 DOI: 10.1038/ajg.2014.122] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Accepted: 03/30/2014] [Indexed: 12/11/2022]
Abstract
Medical imaging involving the use of ionizing radiation has brought enormous benefits to society and patients. In the past several decades, exposure to medical radiation has increased markedly, driven primarily by the use of computed tomography. Ionizing radiation has been linked to carcinogenesis. Whether low-dose medical radiation exposure will result in the development of malignancy is uncertain. This paper reviews the current evidence for such risk, and aims to inform the gastroenterologist of dosages of radiation associated with commonly ordered procedures and diagnostic tests in clinical practice. The use of medical radiation must always be justified and must enable patients to be exposed at the lowest reasonable dose. Recommendations provided herein for minimizing radiation exposure are based on currently available evidence and Working Party expert consensus.
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Romanini L, Passamonti M, Navarria M, Lanzarotto F, Villanacci V, Grazioli L, Calliada F, Maroldi R. Quantitative analysis of contrast-enhanced ultrasonography of the bowel wall can predict disease activity in inflammatory bowel disease. Eur J Radiol 2014; 83:1317-23. [PMID: 24908589 DOI: 10.1016/j.ejrad.2014.05.012] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Revised: 04/15/2014] [Accepted: 05/06/2014] [Indexed: 02/07/2023]
Abstract
PURPOSE To evaluate the accuracy of quantitative analysis of bowel wall enhancement in inflammatory bowel disease (IBD) with contrast enhanced ultrasound (CEUS) by comparing the results with vascular density in a biopsy sample from the same area of the intestinal tract, and to determine the usefulness of this analysis for the prediction of disease activity. MATERIALS AND METHODS This prospective study was approved by our institute's ethics committee and all patients gave written informed consent. We enrolled 33 consecutive adult patients undergoing colonoscopy and biopsy for IBD. All patients underwent CEUS and the results were quantitatively analyzed. Vessel count per high-power field on biopsy specimens was compared with colonoscopy, baseline ultrasonography, and CEUS findings, and with analysis of peak intensity, time to peak, regional blood volume, mean transit time, and regional blood flow. Results in patients with high and low vascular density were compared using Fisher's test, t-test, Pearson's correlation test, and receiver operating characteristic curve (ROC) analysis. Cutoff values were determined using ROC analysis, and sensitivity and specificity were calculated. RESULTS High vascular density (>265 vessels per field) on histological examination was significantly correlated with active disease on colonoscopy, baseline ultrasonography, and CEUS (p<.0001). Quantitative analysis showed a higher enhancement peak, a shorter time to peak enhancement, a higher regional blood flow and regional blood volume in patients with high vascular density than in those with low vascular density. Cutoff values to distinguish between active and inactive disease were identified for peak enhancement (>40.5%), and regional blood flow (>54.8 ml/min). CONCLUSION Quantitative analysis of CEUS data correlates with disease activity as determined by vascular density. Quantitative parameters of CEUS can be used to predict active disease with high sensitivity and specificity.
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Affiliation(s)
- Laura Romanini
- Department of Radiology, Spedali Civili di Brescia, P.le Spedali Civili, 1, 25123 Brescia, Italy.
| | - Matteo Passamonti
- Department of Radiology-AO Provincia di Lodi, Via Fissiraga, 15, 26900 Lodi, Italy.
| | - Mario Navarria
- Department of Radiology-ASL Vallecamonica-Sebino, Via Manzoni 142, 25040 Esine, BS, Italy.
| | - Francesco Lanzarotto
- Department of Gastroenterology, Spedali Civili di Brescia, P.le Spedali Civili, 1, 25123 Brescia, Italy.
| | - Vincenzo Villanacci
- Department of Pathology, Spedali Civili di Brescia, P.le Spedali Civili, 1, 25123 Brescia, Italy.
| | - Luigi Grazioli
- Department of Radiology, Spedali Civili di Brescia, P.le Spedali Civili, 1, 25123 Brescia, Italy.
| | - Fabrizio Calliada
- Department of Radiology, University of Pavia, Viale Camillo Golgi 19, 27100 Pavia, Italy.
| | - Roberto Maroldi
- Department of Radiology, University of Brescia, P.le Spedali Civili, 1, 25123 Brescia, Italy.
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Białecki M, Białecka A, Laskowska K, Kłopocka M, Liebert A, Lemanowicz A, Serafin Z. Contrast-enhanced ultrasonography for the determination of Crohn's disease activity - preliminary experience. Pol J Radiol 2014; 79:70-4. [PMID: 24723988 PMCID: PMC3981682 DOI: 10.12659/pjr.890312] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 01/10/2014] [Indexed: 01/16/2023] Open
Abstract
Background Contrast-enhanced ultrasound (CEUS) is a recent non-invasive modality, which may partially replace currently used techniques (endoscopy, CT enterography and MR enterography) in the diagnostics and assessment of Crohn’s disease (CD). The aim of the study was to analyze early experience in the use of CEUS for the measurement of activity and staging of CD. Material/Methods Eleven patients previously diagnosed with CD were included in the study. They underwent contrast-enhanced ultrasonography (SonoVue, Bracco), low-dose CT enterography (LDCTE), assessment of laboratory markers of inflammation and clinical CD activity index (CDAI). Contrast enhancement was evaluated using a semi-quantitative method and a quantitative method that included measurement of peak enhancement (PE), enhancement curve rise time (RT) and wash-in-rate (WiR). Results Ileal wall thickening was observed in all patients. Semi-quantitative method was used to observe CD activity in CEUS in 10 cases that perfectly matched LDCTE findings. There was a moderate positive correlation between PE and CDAI (r=0.65, p<0.001). There was no significant relationship between perfusion parameters and laboratory markers of inflammation. Conclusions CEUS is a promising modality for non-invasive assessment of pathologic ileal vascularization in the course of Crohn’s disease. Intensity of enhancement in CEUS reflects activity of the disease detected in LDCTE and correlates with CDAI.
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Affiliation(s)
- Marcin Białecki
- Department of Radiology and Diagnostic Imaging, Nicolaus Copernicus University, Collegium Medicum, Bydgoszcz, Poland
| | - Agnieszka Białecka
- Department of Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University, Collegium Medicum, Bydgoszcz, Poland
| | - Katarzyna Laskowska
- Department of Radiology and Diagnostic Imaging, Nicolaus Copernicus University, Collegium Medicum, Bydgoszcz, Poland
| | - Maria Kłopocka
- Center of Interventional Endoscopy, Outpatients' Department of Bowel Diseases, Nicolaus Copernicus University, Collegium Medicum, Bydgoszcz, Poland
| | - Ariel Liebert
- Center of Interventional Endoscopy, Outpatients' Department of Bowel Diseases, Nicolaus Copernicus University, Collegium Medicum, Bydgoszcz, Poland
| | - Adam Lemanowicz
- Department of Radiology and Diagnostic Imaging, Nicolaus Copernicus University, Collegium Medicum, Bydgoszcz, Poland
| | - Zbigniew Serafin
- Department of Radiology and Diagnostic Imaging, Nicolaus Copernicus University, Collegium Medicum, Bydgoszcz, Poland
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Nylund K, Jirik R, Mezl M, Leh S, Hausken T, Pfeffer F, Ødegaard S, Taxt T, Gilja OH. Quantitative contrast-enhanced ultrasound comparison between inflammatory and fibrotic lesions in patients with Crohn's disease. ULTRASOUND IN MEDICINE & BIOLOGY 2013; 39:1197-1206. [PMID: 23643057 DOI: 10.1016/j.ultrasmedbio.2013.01.020] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Revised: 01/25/2013] [Accepted: 01/27/2013] [Indexed: 06/02/2023]
Abstract
The aim of this study was to determine whether there are differences in absolute blood flow between patients with Crohn's disease with inflammation or fibrosis using contrast-enhanced ultrasound. Eighteen patients with fibrotic disease and 19 patients with inflammation were examined. Video sequences of contrast data were analyzed using a pharmacokinetic model to extract the arterial input and tissue residue functions with a custom software, enabling calculation of the absolute values for mean transit time, blood volume and flow. Feasibility of the examination was 89%. The fibrosis group had lower blood volume (0.9 vs. 3.4 mL per 100 mL tissue; p = 0.001) and flow (22.6 vs. 45.3 mL/min per 100 mL tissue; p = 0.003) compared with the inflammation group. There was no significant difference in mean transit time (3.9 vs. 5.5 s). In conclusion, absolute perfusion measurement in the gastrointestinal wall using contrast-enhanced ultrasound is feasible. There seems to be reduced blood volume and blood flow in patients with fibrotic disease.
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Affiliation(s)
- Kim Nylund
- Institute of Medicine, University of Bergen, Bergen, Norway.
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Menys A, Atkinson D, Odille F, Ahmed A, Novelli M, Rodriguez-Justo M, Proctor I, Punwani S, Halligan S, Taylor SA. Quantified terminal ileal motility during MR enterography as a potential biomarker of Crohn’s disease activity: a preliminary study. Eur Radiol 2012; 22:2494-501. [PMID: 22661057 DOI: 10.1007/s00330-012-2514-2] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Revised: 03/29/2012] [Accepted: 04/06/2012] [Indexed: 02/08/2023]
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