Joel Garland Fletcher, MD

  • 12961 Citations
  • 63 Scopus h-Index
1991 …2019
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Research Output 1991 2019

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Conference contribution
2019

Simulation of CT images reconstructed with different kernels using a convolutional neural network and its implications for efficient CT workflow

Missert, A. D., Leng, S., McCollough, C. H., Fletcher, J. G. & Yu, L., Jan 1 2019, Medical Imaging 2019: Physics of Medical Imaging. Bosmans, H., Chen, G-H. & Schmidt, T. G. (eds.). SPIE, 109482Y. (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; vol. 10948).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Workflow
Tomography
tomography
X-Ray Computed Tomography Scanners
Neural networks
2017
3 Citations (Scopus)

A virtual clinical trial using projection-based nodule insertion to determine radiologist reader performance in lung cancer screening CT

Yu, L., Hu, Q., Koo, C. W., Takahashi, E. A., Levin, D. L., Johnson, T. F., Hora, M. J., Dirks, S., Chen, B., McMillan, K., Leng, S., Fletcher, J. G. & McCollough, C. H., 2017, Medical Imaging 2017: Physics of Medical Imaging. SPIE, Vol. 10132. 101321R

Research output: Chapter in Book/Report/Conference proceedingConference contribution

nodules
readers
Early Detection of Cancer
lungs
insertion
2016
3 Citations (Scopus)

An open library of CT patient projection data

Chen, B., Leng, S., Yu, L., Holmes III, D. R., Fletcher, J. G. & McCollough, C. H., 2016, Medical Imaging 2016: Physics of Medical Imaging. SPIE, Vol. 9783. 97831B

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Digital Imaging and Communications in Medicine (DICOM)
abdomen
chest
files
Abdomen
3 Citations (Scopus)

Evaluation of a projection-domain lung nodule insertion technique in thoracic CT

Ma, C., Chen, B., Koo, C. W., Takahashi, E. A., Fletcher, J. G., McCollough, C. H., Levin, D. L., Kuzo, R. S., Viers, L. D., Vincent Sheldon, S. A., Leng, S. & Yu, L., 2016, Medical Imaging 2016: Physics of Medical Imaging. SPIE, Vol. 9783. 97835Y

Research output: Chapter in Book/Report/Conference proceedingConference contribution

nodules
lungs
lesions
Tomography
insertion
2012
8 Citations (Scopus)

Adaptive non-local means filtering based on local noise level for CT denoising

Li, Z., Yu, L., Trazasko, J. D., Fletcher, J. G., McCollough, C. H. & Manduca, A., 2012, Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 8313. 83131H

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Noise
Dosimetry
dosage
Radiology
Radiation
1 Citation (Scopus)

Automated detection and diagnosis of Crohn's disease in CT enterography

Näppi, J. J., Sahani, D. V., Fletcher, J. G. & Yoshida, H., 2012, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 7029 LNCS. p. 84-90 7 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 7029 LNCS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Obstruction
Therapy
Diagnostics
Enhancement
Interpretation
3 Citations (Scopus)

Computer-aided polyp detection for laxative-free CT colonography

Panjwani, N., Linguraru, M. G., Fletcher, J. G. & Summers, R. M., 2012, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 7029 LNCS. p. 18-26 9 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 7029 LNCS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Computer-aided Detection
Screening
Texture Analysis
Shape Analysis
False Positive
2011

Computer-assisted diagnosis for quantitative image-based analysis of Crohn's disease in CT enterography

Näppi, J., Lee, J. G., Fletcher, J. G. & Yoshida, H., 2011, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 6668 LNCS. p. 84-90 7 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 6668 LNCS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bootstrapping
Receiver Operating Characteristic Curve
Region of Interest
Support vector machines
Support Vector Machine
2010
6 Citations (Scopus)

Adaptive modulation of bilateral filtering based on a practical noise model for streaking and noise reduction in multi-slice CT

Yu, L., Manduca, A., Jacobsen, M., Trazasko, J. D., Fletcher, J. G., DeLone, D. R. & McCollough, C. H., 2010, Progress in Biomedical Optics and Imaging - Proceedings of SPIE. PART 2 ed. Vol. 7622. 76222O

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Adaptive modulation
Noise abatement
noise reduction
Acoustic noise
Noise

Evaluation of dual-front active contour segmentation and metal shadow filling methods on metal artifact reduction in multi-slice helical CT

Li, H., Yu, L., Guimaraes, L. S., Fletcher, J. G. & McCollough, C. H., 2010, Progress in Biomedical Optics and Imaging - Proceedings of SPIE. PART 2 ed. Vol. 7622. 76222N

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Spiral Computed Tomography
Artifacts
artifacts
Metals
evaluation
2009
24 Citations (Scopus)

Comparative study of two image space noise reduction methods for computed tomography: Bilateral filter and nonlocal means

Ramirez Giraldo, J. C., Kelm, Z. S., Guimaraes, L. S., Yu, L., Fletcher, J. G., Erickson, B. J. & McCollough, C. H., 2009, Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009. p. 3529-3532 4 p. 5334714

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Acoustic variables control
Noise abatement
Quality assurance
Image quality
Dosimetry

Evaluating "Optimal CNR" as a Preset Criteria for Nonlinear Moidal Blending of Dual Energy CT Data

Holmes III, D. R., Apel, A., Fletcher, J. G., Guimaraes, L. S., Eusemann, C. E. & Robb, R. A., 2009, Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 7261. 726123

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Syringes
Noise
Liver
syringes
liver
2 Citations (Scopus)

Reproducibility of aortic pulsatility measurements from ECG-gated abdominal CTA in patients with abdominal aortic aneurysms

Manduca, A., Fletcher, J. G., Wentz, R. J., Shields, R. C., Vrtiska, T. J., Siddiki, H. & Nielson, T., 2009, Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 7262. 72620L

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abdominal Aortic Aneurysm
Electrocardiography
Angiography
angiography
Aneurysm
2008
6 Citations (Scopus)

CAD of colon cancer on CT colonography cases without cathartic bowel preparation

Linguraru, M. G., Zhao, S., Van Uitert, R. L., Liu, J., Fletcher, J. G., Manduca, A. & Summers, R. M., 2008, Proceedings of the 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'08 - "Personalized Healthcare through Technology". p. 2996-2999 4 p. 4649833

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Cathartics
Computed Tomographic Colonography
Computer aided diagnosis
Colonic Neoplasms
Polyps
22 Citations (Scopus)

Dual energy CT - How to best blend both energies in one fused image?

Eusemann, C., Holmes III, D. R., Schmidt, B., Flohr, T. G., Robb, R., McCollough, C. H., Hough, D. M., Huprich, J. E., Wittmer, M., Siddiki, H. & Fletcher, J. G., 2008, Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 6918. 691803

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Tomography
Pathology
X rays
Tissue
Imaging techniques
12 Citations (Scopus)

Sinogram smoothing with bilateral filtering for low-dose CT

Yu, L., Manduca, A., Trazasko, J. D., Khaylova, N., Kofler, J. M., McCollough, C. H. & Fletcher, J. G., 2008, Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 6913. 691329

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pixels
Acoustic variables control
Noise abatement
Image quality
2007
5 Citations (Scopus)

Automatic segmentation and Co-registration of gated CT angiography datasets: measuring abdominal aortic pulsatility

Wentz, R., Manduca, A., Fletcher, J. G., Siddiki, H., Shields, R. C., Vrtiska, T. J., Spencer, G., Primak, A. N., Zhang, J., Nielson, T., McCollough, C. H. & Yu, L., 2007, Progress in Biomedical Optics and Imaging - Proceedings of SPIE. PART 2 ed. Vol. 6511. 65111I

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Angiography
Electrocardiography
Seed
Visualization
Tissue
2006
2 Citations (Scopus)

Geometric modeling, functional parameter calculation, and visualization of the in-vivo distended rectal wall

Haider, C. R., Camp, J. J., Fletcher, J. G., Robb, R. A. & Bharucha, A. E., 2006, Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 6143 I. 61431D

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Balloons
Visualization
Magnetic resonance
Imaging techniques
Mechanical properties