Jayaram K Udupa

Summary

Affiliation: University of Pennsylvania
Country: USA

Publications

  1. pmc CAVASS: a computer-assisted visualization and analysis software system
    George Grevera
    Department of Mathematics and Computer Science, Saint Joseph s University, 5600 City Avenue, Philadelphia, PA 19131, USA
    J Digit Imaging 20:101-18. 2007
  2. ncbi request reprint Multiple sclerosis lesion quantification using fuzzy-connectedness principles
    J K Udupa
    Department of Radiology, University of Pennsylvania, Philadelphia 19104 6021, USA
    IEEE Trans Med Imaging 16:598-609. 1997
  3. ncbi request reprint Analysis of in vivo 3-D internal kinematics of the joints of the foot
    J K Udupa
    Department of Radiology, University of Pennsylvania, Philadelphia 19104, USA
    IEEE Trans Biomed Eng 45:1387-96. 1998
  4. ncbi request reprint A framework for evaluating image segmentation algorithms
    Jayaram K Udupa
    Medical Image Processing Group, Department of Radiology, University of Pennsylvania, Philadelphia, PA 19104 6021, USA
    Comput Med Imaging Graph 30:75-87. 2006
  5. ncbi request reprint 3DVIEWNIX-AVS: a software package for the separate visualization of arteries and veins in CE-MRA images
    Tianhu Lei
    Medical Image Processing Group, Department of Radiology, University of Pennsylvania, 4th Floor, Blockley Hall, 423 Guardian Drive, Philadelphia, PA 19104 6021, USA
    Comput Med Imaging Graph 27:351-62. 2003
  6. pmc Rigid model-based 3D segmentation of the bones of joints in MR and CT images for motion analysis
    Jiamin Liu
    Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania 19104 6021, USA
    Med Phys 35:3637-49. 2008
  7. pmc Image background inhomogeneity correction in MRI via intensity standardization
    Ying Zhuge
    Medical Image Processing Group, Department of Radiology, University of Pennsylvania, Blockley Hall, 423 Guardian Drive, Philadelphia, PA 19104 6021, USA
    Comput Med Imaging Graph 33:7-16. 2009
  8. ncbi request reprint Volume rendering in the presence of partial volume effects
    Andre Souza
    Medical Image Processing Group, Department of Radiology, University of Pennsylvania, Philadelphia, PA 19104 6021, USA
    IEEE Trans Med Imaging 24:223-35. 2005
  9. ncbi request reprint System for upper airway segmentation and measurement with MR imaging and fuzzy connectedness
    Jianguo Liu
    Medical Image Processing Group, Department of Radiology, University of Pennsylvania, 4th Floor, Blockley Hall, 423 Guardian Dr, Philadelphia, PA 19104 6021, USA
    Acad Radiol 10:13-24. 2003
  10. doi request reprint PET/MR imaging: technical aspects and potential clinical applications
    Drew A Torigian
    Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce St, Philadelphia, PA 19104 4283, USA
    Radiology 267:26-44. 2013

Collaborators

Detail Information

Publications33

  1. pmc CAVASS: a computer-assisted visualization and analysis software system
    George Grevera
    Department of Mathematics and Computer Science, Saint Joseph s University, 5600 City Avenue, Philadelphia, PA 19131, USA
    J Digit Imaging 20:101-18. 2007
    ....
  2. ncbi request reprint Multiple sclerosis lesion quantification using fuzzy-connectedness principles
    J K Udupa
    Department of Radiology, University of Pennsylvania, Philadelphia 19104 6021, USA
    IEEE Trans Med Imaging 16:598-609. 1997
    ..9% (based on 20 patient studies, three operators, and two trials) for volume and a mean false-negative volume fraction of 1.3%, with a 95% confidence interval of 0%-2.8% (based on ten patient studies)...
  3. ncbi request reprint Analysis of in vivo 3-D internal kinematics of the joints of the foot
    J K Udupa
    Department of Radiology, University of Pennsylvania, Philadelphia 19104, USA
    IEEE Trans Biomed Eng 45:1387-96. 1998
    ..Some of the 3-D kinematic animations generated using the methods of this paper for normal joints can be seen at: http:(/)/www.mipg.upenn.edu...
  4. ncbi request reprint A framework for evaluating image segmentation algorithms
    Jayaram K Udupa
    Medical Image Processing Group, Department of Radiology, University of Pennsylvania, Philadelphia, PA 19104 6021, USA
    Comput Med Imaging Graph 30:75-87. 2006
    ..Segmentation methods must be compared based on all three factors, as illustrated in an example wherein two methods are compared in a particular application domain. The weight given to each factor depends on application...
  5. ncbi request reprint 3DVIEWNIX-AVS: a software package for the separate visualization of arteries and veins in CE-MRA images
    Tianhu Lei
    Medical Image Processing Group, Department of Radiology, University of Pennsylvania, 4th Floor, Blockley Hall, 423 Guardian Drive, Philadelphia, PA 19104 6021, USA
    Comput Med Imaging Graph 27:351-62. 2003
    ..To date, it seems to be the only software package (using an image processing approach) available for artery and vein separation of the human vascular system for routine use in a clinical setting...
  6. pmc Rigid model-based 3D segmentation of the bones of joints in MR and CT images for motion analysis
    Jiamin Liu
    Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania 19104 6021, USA
    Med Phys 35:3637-49. 2008
    ..2%-0.7%. The method requires 1-2 minutes of operator time and 6-7 min of computer time per data set, which makes it significantly more efficient than live wire-the method currently available for the task that can be used routinely...
  7. pmc Image background inhomogeneity correction in MRI via intensity standardization
    Ying Zhuge
    Medical Image Processing Group, Department of Radiology, University of Pennsylvania, Blockley Hall, 423 Guardian Drive, Philadelphia, PA 19104 6021, USA
    Comput Med Imaging Graph 33:7-16. 2009
    ..These tests and a comparison with the method of non-parametric non-uniform intensity normalization (N3) indicate that the method is effective in background intensity inhomogeneity correction and may have a slight edge over the N3 method...
  8. ncbi request reprint Volume rendering in the presence of partial volume effects
    Andre Souza
    Medical Image Processing Group, Department of Radiology, University of Pennsylvania, Philadelphia, PA 19104 6021, USA
    IEEE Trans Med Imaging 24:223-35. 2005
    ..Further, skin peeling vividly reveals fine details in the soft tissue structures...
  9. ncbi request reprint System for upper airway segmentation and measurement with MR imaging and fuzzy connectedness
    Jianguo Liu
    Medical Image Processing Group, Department of Radiology, University of Pennsylvania, 4th Floor, Blockley Hall, 423 Guardian Dr, Philadelphia, PA 19104 6021, USA
    Acad Radiol 10:13-24. 2003
    ....
  10. doi request reprint PET/MR imaging: technical aspects and potential clinical applications
    Drew A Torigian
    Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce St, Philadelphia, PA 19104 4283, USA
    Radiology 267:26-44. 2013
    ..Supplemental material: http://radiology.rsna.org/lookup/suppl/doi:10.1148/radiol.13121038/-/DC1...
  11. pmc Image filtering via generalized scale
    Andre Souza
    Medical Image Processing Group, Department of Radiology, University of Pennsylvania, Fourth Floor, Blockley Hall, 423 Guardian Drive, Philadelphia, PA 19104 6021, United States
    Med Image Anal 12:87-98. 2008
    ..Qualitative experiments based on both phantom and patient magnetic resonance images demonstrate that the generalized scale-based approach leads to better preservation of fine details and edges...
  12. ncbi request reprint A system for brain tumor volume estimation via MR imaging and fuzzy connectedness
    Jianguo Liu
    Medical Image Processing Group, Department of Radiology, University of Pennsylvania, Philadelphia, 4th Floor, Blockley Hall, 423 Guardian Drive, PA 19104 6021, USA
    Comput Med Imaging Graph 29:21-34. 2005
    ..The methodology is rapid, robust, consistent, yielding highly reproducible measurements, and is likely to become part of the routine evaluation of brain tumor patients in our health system...
  13. ncbi request reprint Iso-shaping rigid bodies for estimating their motion from image sequences
    Punam K Saha
    Medical Image Processing Group, Department of Radiology, University of Pennsylvania, Philadelphia, PA 19104 6021, USA
    IEEE Trans Med Imaging 23:63-72. 2004
    ..The analysis indicates that iso-shaping produces results as predicted by the theoretical framework...
  14. doi request reprint Feasibility of estimation of brain volume and 2-deoxy-2-(18)F-fluoro-D-glucose metabolism using a novel automated image analysis method: application in Alzheimer's disease
    Erik S Musiek
    Department of Neurology, Hospital of the University of Pennsylvania, 3400 Spruce St, Philadelphia, PA 19104, USA
    Hell J Nucl Med 15:190-6. 2012
    ..In conclusion, our findings suggest that ROVER may serve as a useful quantitative adjunct to visual or regional assessment and aid analysis of whole-brain metabolism in AD and other neurologic and psychiatric diseases...
  15. ncbi request reprint Three-dimensional bone-free rendering of the cerebral circulation by use of computed tomographic angiography and fuzzy connectedness
    John M Abrahams
    Department of Neurosurgery, The Hospital of the University of Pennsylvania, Philadelphia 19104, USA
    Neurosurgery 51:264-8; discussion 268-9. 2002
    ..In view of this, we developed a method for bone-free rendering using iterative relative fuzzy connectedness (IRFC) of 3-D-CTA to examine the cerebral vasculature without the intervening cranial base...
  16. pmc Subject-specific models of the hindfoot reveal a relationship between morphology and passive mechanical properties
    Carl W Imhauser
    Department of Mechanical Engineering and Mechanics, Drexel University, 34th and Chestnut Streets, Philadelphia, PA 19104, USA
    J Biomech 41:1341-9. 2008
    ..The results suggest that individualized subject-specific treatment procedures for ankle complex disorders are potentially superior to a one-size-fits-all approach...
  17. ncbi request reprint 3D airway segmentation via hyperpolarized 3He gas MRI by using scale-based fuzzy connectedness
    Binquan Wang
    BI, Stellar Chance Laboratories, Metabolic Magnetic Resonance Research and Computing Center, Department of Radiology, Hospital of the University of Pennsylvania, 422 Curie Boulevard, Philadelphia, PA 19104, USA
    Comput Med Imaging Graph 28:77-86. 2004
    ..The total operator and computational time required per study are on the average 2 and 20 min...
  18. ncbi request reprint 3D MRA visualization and artery-vein separation using blood-pool contrast agent MS-325
    Tianhu Lei
    Department of Radiology, University of Pennsylvania, Philadelphia 19104 6021, USA
    Acad Radiol 9:S127-33. 2002
  19. ncbi request reprint Estimation of tumor volume with fuzzy-connectedness segmentation of MR images
    Gul Moonis
    Neuroradiology Section, Department of Radiology, University of Pennsylvania Medical Center, Philadelphia 19104 4283, USA
    AJNR Am J Neuroradiol 23:356-63. 2002
    ..Our purpose was to adapt the fuzzy-connectedness segmentation technique to measure tumor volume. This technique requires only limited operator interaction...
  20. doi request reprint In vivo quantification of pulmonary inflammation in relation to emphysema severity via partial volume corrected (18)F-FDG-PET using computer-assisted analysis of diagnostic chest CT
    Drew A Torigian
    Department of Radiology Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA
    Hell J Nucl Med 16:12-8. 2013
    ....
  21. pmc The treatment of multiple sclerosis with inosine
    Clyde E Markowitz
    Neurology Department, University of Pennsylvania, Philadelphia, PA, USA
    J Altern Complement Med 15:619-25. 2009
    ....
  22. ncbi request reprint Upper airway size analysis by magnetic resonance imaging of children with obstructive sleep apnea syndrome
    Raanan Arens
    Division of Pulmonary Medicine, Children s Hospital of Philadelphia, Philadelphia, Pennsylvania 19104 4399, USA
    Am J Respir Crit Care Med 167:65-70. 2003
    ....
  23. ncbi request reprint Determining lesion size in osteonecrosis of the femoral head
    David R Steinberg
    Department of Orthopaedic Surgery, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA
    J Bone Joint Surg Am 88:27-34. 2006
    ..In the present study, three different radiographic methods for determining lesion size were evaluated and compared...
  24. ncbi request reprint Detection of age-related changes in thoracic structure and function by computed tomography, magnetic resonance imaging, and positron emission tomography
    David S Well
    Department of Radiology, University of Pennsylvania School of Medicine, Philadelphia, PA 19104 4283, USA
    Semin Nucl Med 37:103-19. 2007
    ..Lung metabolic volumetric products were not noted to significantly change with increasing BMI or with increasing age. In this work, we also review the literature regarding normal structural and functional changes in the thorax with age...
  25. ncbi request reprint Cartilage volume quantification via Live Wire segmentation
    Alexander J Gougoutas
    Metabolic Magnetic Resonance Research and Computing Center, Department of Radiology, University of Pennsylvania, B1 Stellar Chance Laboratories, 422 Curie Blvd, Philadelphia, PA 19104 2045, USA
    Acad Radiol 11:1389-95. 2004
    ..In the present work, the accuracy and reproducibility of the Live Wire method for the quantification of cartilage volume in MR images is evaluated...
  26. ncbi request reprint Magnetization transfer ratio histogram analysis of normal-appearing gray matter and normal-appearing white matter in multiple sclerosis
    Yulin Ge
    Department of Radiology, New York University School of Medicine, Neew York, NY 10016, USA
    J Comput Assist Tomogr 26:62-8. 2002
    ....
  27. ncbi request reprint New methods of MR image intensity standardization via generalized scale
    Anant Madabhushi
    Department of Biomedical Engineering, Rutgers The State University of New Jersey, 617 Bowser Road, Room 101, Piscataway, New Jersey 08854, USA
    Med Phys 33:3426-34. 2006
    ..The new scale-based methods were found to be better than the existing methods, with a significant improvement observed for severely diseased and abnormal patient studies...
  28. ncbi request reprint Interplay between intensity standardization and inhomogeneity correction in MR image processing
    Anant Madabhushi
    Department of Biomedical Engineering, Rutgers University, 617 Bowser Road, rm 102, BME Bldg, Piscataway, NJ 08854, USA
    IEEE Trans Med Imaging 24:561-76. 2005
    ..Overall, we conclude that inhomogeneity correction followed by intensity standardization is the best sequence to follow from the perspective of both image quality and computational efficiency...
  29. ncbi request reprint Incorporating a measure of local scale in voxel-based 3-D image registration
    László G Nyúl
    Department of Applied Informatics, University of Szeged, H 6701 Szeged, Hungary
    IEEE Trans Med Imaging 22:228-37. 2003
    ..We have previously demonstrated the use of local scale information in fuzzy connectedness segmentation and image filtering. Scale may also have potential for image registration as suggested by this work...
  30. ncbi request reprint Comparing MR image intensity standardization against tissue characterizability of magnetization transfer ratio imaging
    Anant Madabhushi
    Department of Biomedical Engineering, Rutgers University, New Brunswick, New Jersey, USA
    J Magn Reson Imaging 24:667-75. 2006
    ....
  31. ncbi request reprint Medical image reconstruction, processing, visualization, and analysis: the MIPG perspective. Medical Image Processing Group
    Jayaram K Udupa
    IEEE Trans Med Imaging 21:281-95. 2002
  32. ncbi request reprint Mandibular dimensions in children with obstructive sleep apnea syndrome
    Patricia H Schiffman
    Division of Plastic and Reconstructive Surgery, The Children s Hospital of Philadelphia, Pennsylvania 19104 4399, USA
    Sleep 27:959-65. 2004
    ..We used magnetic resonance imaging to determine the mandible dimensions of children with OSAS...
  33. ncbi request reprint The geometric architecture of the subtalar and midtarsal joints in rheumatoid arthritis based on magnetic resonance imaging
    James Woodburn
    Rheumatology and Rehabilitation Research Unit, University of Leeds, Leeds, UK
    Arthritis Rheum 46:3168-77. 2002
    ..To compare in vivo the 3-dimensional (3-D) geometric architecture of the subtalar and midtarsal joints in normal and rheumatoid arthritic (RA) feet, using magnetic resonance imaging (MRI) analysis...