Associate Professor of Radiology, Mayo Medical School
Radiology
Dr. Joel G. Fletcher, MD
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Joel Fletcher is an expert in the field of Radiology. He researched medicine at Harvard Medical School. Harvard Medical School is one of the top medical schools in the US. Harvard Medical School is ranked 1/12 in Research/PrimaryCare. He has 1 awards "Regional Top Doctor". Joel G. Fletcher is also published. He has 99 publications published. The lastest publication: "Evaluation of Patient Tolerance and Small-Bowel Distention With a New Small-Bowel Distending Agent for Enterography.' Joel Fletcher is registered with Medicare.
Publications
- Dealing with Uncertainty in CT Images.
- Evaluation of Patient Tolerance and Small-Bowel Distention With a New Small-Bowel Distending Agent for Enterography.
- Characterization of Urinary Stone Composition by Use of Third-Generation Dual-Source Dual-Energy CT With Increased Spectral Separation.
- Radiation Dose Reduction in Pediatric Body CT Using Iterative Reconstruction and a Novel Image-Based Denoising Method.
- CT Metal Artifact Reduction in the Spine: Can an Iterative Reconstruction Technique Improve Visualization?
- Individualizing Management of Complex Esophageal Pathology Using Three-Dimensional Printed Models.
- Observer performance for adaptive, image-based denoising and filtered back projection compared to scanner-based iterative reconstruction for lower dose CT enterography.
- Editorial: characterization of inflammation and fibrosis in Crohn's disease lesions by magnetic resonance imaging.
- NSAID enteropathy: appearance at CT and MR enterography in the age of multi-modality imaging and treatment.
- CT enterography: technical and interpretive pitfalls.
- Gastrointestinal hemorrhage: evaluation with MDCT.
- CT and MR enterography in Crohn's disease: current and future applications.
- CT enterography for Crohn's disease: optimal technique and imaging issues.
- CT Colonography for the Detection of Nonpolypoid Adenomas: Sensitivity Assessed With Restricted National CT Colonography Trial Criteria.
- Pilot Study of Radiation Dose Reduction for Pediatric Head CT in Evaluation of Ventricular Size.
- Clinical characteristics and imaging features of small bowel adenocarcinomas in Crohn's disease.
- Subtraction Color Map of Contrast-Enhanced and Unenhanced CT for the Prediction of Pancreatic Necrosis in Early Stage of Acute Pancreatitis.
- Validation of a CT-Derived Method for Osteoporosis Screening in IBD Patients Undergoing Contrast-Enhanced CT Enterography.
- Adaptive nonlocal means filtering based on local noise level for CT denoising.
- Case-control study to estimate the performance of dual-energy computed tomography for anterior cruciate ligament tears in patients with history of knee trauma.
- EMerging BiomARKers in Inflammatory Bowel Disease (EMBARK) Study Identifies Fecal Calprotectin, Serum MMP9, and Serum IL-22 as a Novel Combination of Biomarkers for Cr...
- Noncathartic CT Colonography: Image Quality Assessment and Performance and in a Screening Cohort.
- Automatic Selection of Tube Potential for Radiation Dose Reduction in Vascular and Contrast-Enhanced Abdominopelvic CT.
- Individualization of abdominopelvic CT protocols with lower tube voltage to reduce i.v. contrast dose or radiation dose.
- Reducing Radiation Dose in CT Enterography.
- Effects of Clonidine in Women With Fecal Incontinence.
- Current status of CT, magnetic resonance, and barium in inflammatory bowel disease.
- Perspective on radiation risk in CT imaging.
- Endoscopic Skipping of the Distal Terminal Ileum in Crohn's Disease can Lead to Negative Results from Ileocolonoscopy.
- Obstetric Trauma, Pelvic Floor Injury and Fecal Incontinence: A Population-Based Case-Control Study.
- Applications of Dual-Energy CT in Urologic Imaging: An Update.
- Similar Outcomes of Surgical and Medical Treatment of Intra-Abdominal Abscesses in Patients with Crohn's Disease.
- Virtual monochromatic imaging in dual-source dual-energy CT: Radiation dose and image quality.
- Identification of intraarticular and periarticular uric acid crystals with dual-energy CT: initial evaluation.
- Noise reduction in spectral CT: Reducing dose and breaking the trade-off between image noise and energy bin selection.
- Prospective Blinded Comparison of Wireless Capsule Endoscopy and Multiphase CT Enterography in Obscure Gastrointestinal Bleeding.
- Development of the Crohn's disease digestive damage score, the Lémann score.
- Computed Tomography Enterography Detects Intestinal Wall Changes and Effects of Treatment in Patients with Crohn's Disease.
- Optimal Tube Potential for Radiation Dose Reduction in Pediatric CT: Principles, Clinical Implementations, and Pitfalls.
- New concepts in intestinal imaging for inflammatory bowel diseases.
- Validation of a lower radiation computed tomography enterography imaging protocol to detect Crohn's disease in the small bowel.
- Benefit of computed tomography enterography in Crohn's disease: Effects on patient management and physician level of confidence.
- Appropriate patient selection at abdominal dual-energy CT using 80 kV: relationship between patient size, image noise, and image quality.
- Dual-source dual-energy CT with additional tin filtration: Dose and image quality evaluation in phantoms and in vivo.
- Feasibility of dose reduction using novel denoising techniques for low kV (80 kV) CT enterography: optimization and validation.
- Metal artifact suppression from reformatted projections in multislice helical CT using dual-front active contours.
- Incidental findings in imaging research: evaluating incidence, benefit, and burden.
- Pictorial review of colonic polyp and mass distortion and recognition with the CT virtual dissection technique.
- Can radiologist training and testing ensure high performance in CT colonography? Lessons From the National CT Colonography Trial.
- Detectability of urinary stones on virtual nonenhanced images generated at pyelographic-phase dual-energy CT.
- Genitourinary applications of dual-energy CT.
- Assessment of appropriateness of indications for CT enterography in younger patients.
- Automatic selection of tube potential for radiation dose reduction in CT: a general strategy.
- Projection space denoising with bilateral filtering and CT noise modeling for dose reduction in CT.
- Metal artifact reduction from reformatted projections for hip prostheses in multislice helical computed tomography: techniques and initial clinical results.
- Autoimmune pancreatitis: differentiation from pancreatic carcinoma and normal pancreas on the basis of enhancement characteristics at dual-phase CT.
- Prospective comparison of state-of-the-art MR enterography and CT enterography in small-bowel Crohn's disease.
- CT enterography and fistulizing Crohn's disease: clinical benefit and radiographic findings.
- In defense of body CT.
- Computed tomographic colonography and high-risk adenomas: a gap in the guidelines?
- Autoimmune pancreatitis: pancreatic and extrapancreatic imaging findings.
- Dual-energy and dual-source CT: is there a role in the abdomen and pelvis?
- Comparative study of two image space noise reduction methods for computed tomography: bilateral filter and nonlocal means.
- Prevalence of penetrating disease and extraintestinal manifestations of Crohn's disease detected with CT enterography.
- Formative evaluation of standardized training for CT colonographic image interpretation by novice readers.
- Detection of occult colonic perforation before CT colonography after incomplete colonoscopy: perforation rate and use of a low-dose diagnostic scan before CO2 insuffla...
- Diagnostic ionizing radiation exposure in a population-based cohort of patients with inflammatory bowel disease.
- Small-bowel imaging in Crohn's disease: a prospective, blinded, 4-way comparison trial.
- Understanding the relationship between image quality and motion velocity in gated computed tomography: preliminary work for 4-dimensional musculoskeletal imaging.
- A prospective evaluation of computerized tomographic (CT) scanning as a screening modality for esophageal varices.
- Dual-energy CT iodine-subtraction virtual unenhanced technique to detect urinary stones in an iodine-filled collecting system: a phantom study.
- Computerized tomography enterography and its role in small-bowel imaging.
- Noncathartic CT colonography with stool tagging: performance with and without electronic stool subtraction.
- Obscure gastrointestinal bleeding: evaluation with 64-section multiphase CT enterography--initial experience.
- Dual-phase CT of autoimmune pancreatitis: a multireader study.
- Managing incidental findings in human subjects research: analysis and recommendations.
- Head-to-head comparison of oral contrast agents for cross-sectional enterography: small bowel distention, timing, and side effects.
- Analysis of heart rate and heart rate variation during cardiac CT examinations.
- CAD of colon cancer on CT colonography cases without cathartic bowel preparation.
- Abdominal findings in hereditary hemorrhagic telangiectasia: pictorial essay on 2D and 3D findings with isotropic multiphase CT.
- Quality assessment for CT colonography: validation of automated measurement of colonic distention and residual fluid.
- Noninvasive differentiation of uric acid versus non-uric acid kidney stones using dual-energy CT.
- Prevalence and significance of incidental extracardiac findings at 64-multidetector coronary CTA.
- Computer-aided detection (CAD) using 360 degree virtual dissection: can CAD in a first reviewer paradigm be a reliable substitute for primary 2D or 3D search?
- Resectability of presymptomatic pancreatic cancer and its relationship to onset of diabetes: a retrospective review of CT scans and fasting glucose values prior to dia...
- Large-vessel distensibility measurement with electrocardiographically gated multidetector CT: phantom study and initial experience.
- Standards for gastroenterologists for performing and interpreting diagnostic computed tomographic colonography.
- Effect of slice thickness and primary 2D versus 3D virtual dissection on colorectal lesion detection at CT colonography in 452 asymptomatic adults.
- Spectrum of normal and abnormal CT appearances of the ileocecal valve and cecum with endoscopic and surgical correlation.
- Automated polyp measurement with CT colonography: preliminary observations in a phantom colon model.
- Renal involvement in patients with autoimmune pancreatitis: CT and MR imaging findings.
- Active Crohn disease: CT findings and interobserver agreement for enteric phase CT enterography.
- CT of small-bowel ischemia associated with obstruction in emergency department patients: diagnostic performance evaluation.
- Relationship between noise, dose, and pitch in cardiac multi-detector row CT.
- Effect of aging on anorectal and pelvic floor functions in females.
- Neural ganglia visualized by endoscopic ultrasound.
- Evaluation of benign and malignant rectal lesions with CT colonography and endoscopic correlation.
- Occult colorectal polyps on CT colonography: implications for surveillance.
Schools
Harvard Medical School
University Iowa Hosps and Clinics
Doctors Specialties
- Diagnostic Radiology
- Radiology
Accepted Insurances
Awards
- Regional Top Doctor
Education
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University of Iowa Hospitals and Clinics -
Harvard Medical School
Hospital
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Mayo Clinic - Rochester, Minnesota
Helpful Reviews
Medicare Facts
| National Provider Identifier [NPI] | 1912975368 |
| Last Name Of The Provider | FLETCHER |
| First Name Of The Provider | JOEL |
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