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Lyons Y, Kamat A, Schwartz M, Mody D, Zhou H, Hobday C, Ge Y. Contribution of human papillomavirus (HPV) genotypes to persistently abnormal cervical cytology in a high-risk Latino population. Gynecol Oncol 2014. [DOI: 10.1016/j.ygyno.2014.03.442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Liu J, Wu Q, Yin F, Kirkpatrick J, Cabrera A, Ge Y. TH-A-9A-01: Active Optical Flow Model: Predicting Voxel-Level Dose Prediction in Spine SBRT. Med Phys 2014. [DOI: 10.1118/1.4889571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Yuan L, Ge Y, Yin F, Li Y, Sheng Y, Wu QJ. SU-E-T-49: Automatic Beam Angle Determination for Lung IMRT Planning Using a Beam Configuration Atlas. Med Phys 2014. [DOI: 10.1118/1.4888379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Simonaro C, Frohbergh M, Ge Y, Meng F, He X, DeAngelis V, Karabul N, Sόlyom A, Schuchman E. THU0361 Bone and Joint Disease in Mucopolysaccharidosis Involves Tlr4-Related Inflammation and Improves upon Treatment with Pentosan Polysulphate. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Sheng Y, Li T, Zhang Y, Yin F, Ge Y, Wu Q. MO-C-17A-07: Building Atlas for Automatic Prostate IMRT Planning: Anatomical Feature Parameterization and Classification. Med Phys 2014. [DOI: 10.1118/1.4889130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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131
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Lu S, Yuan L, Craciunescu O, Ge Y, Yin F, Wu Q. TU-C-17A-11: Progressive Knowledge Modeling for Pelvic IMRT/VMAT Treatment Planning. Med Phys 2014. [DOI: 10.1118/1.4889286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Yuan L, Wu QJ, Yin F, Ge Y. SU-F-BRD-10: Lung IMRT Planning Using Standardized Beam Bouquet Templates. Med Phys 2014. [DOI: 10.1118/1.4889064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Ge Y, Takino H, Sato F, Yamada S, Masaki A, Fujiyoshi Y, Hattori H, Morita A, Kuo TT, Inagaki H. Distinctive immunoglobulinVHgene features of cutaneous marginal zone lymphomas in Asian cases. Br J Dermatol 2014; 170:735-7. [DOI: 10.1111/bjd.12614] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kuipers AL, Zmuda JM, Carr JJ, Terry JG, Patrick AL, Ge Y, Hightower RC, Bunker CH, Miljkovic I. Association of volumetric bone mineral density with abdominal aortic calcification in African ancestry men. Osteoporos Int 2014; 25:1063-9. [PMID: 23974859 PMCID: PMC3945719 DOI: 10.1007/s00198-013-2486-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Accepted: 07/24/2013] [Indexed: 01/08/2023]
Abstract
SUMMARY We tested for association between cortical and trabecular volumetric bone mineral density (vBMD) with abdominal aortic calcification (AAC) prevalence in 278 Afro-Caribbean men. AAC was present in 68.3 % of the men. Greater cortical, but not trabecular, vBMD was associated with significantly decreased odds of AAC independent of traditional risk factors. INTRODUCTION The aim of this study is to assess the prevalence and correlates of AAC in a sample of 278 Afro-Caribbean men (mean age 56) and to test for a largely unexplored association between cortical and trabecular vBMD with AAC prevalence. METHODS Men were recruited consecutively as part of an ongoing prospective cohort study of body composition in men aged 40+. For this analysis, AAC was assessed by computed tomography of the abdomen from L3 to S1. Aortic calcium was scored using the Agatston method, and prevalence was defined as a score ≥10 to rule out false positives. Men also had BMD assessed using peripheral quantitative computed tomography at 4 % (trabecular vBMD) and 33 % (cortical vBMD) of the radius and tibia. RESULTS Abdominal aortic calcification was present in 68.3 % of the men. Significant independent predictors of AAC prevalence were increased age, increased BMI, hypertension, and current smoking. Age was the strongest predictor, with each SD (7.8 year) increase in age conferring 2.7 times increased odds of having AAC (P < 0.0001). A one SD greater cortical, but not trabecular, vBMD was associated with a significant decreased odds of AAC prevalence independent of other traditional risk factors (OR 0.65; 95 % CI 0.45-0.92). CONCLUSIONS Cortical vBMD is inversely associated with AAC presence. This finding suggests that there may be shared physiology between cortical bone compartment remodeling and vascular calcification.
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Chang K, Barnes S, Haacke EM, Grossman RI, Ge Y. Imaging the effects of oxygen saturation changes in voluntary apnea and hyperventilation on susceptibility-weighted imaging. AJNR Am J Neuroradiol 2013; 35:1091-5. [PMID: 24371029 DOI: 10.3174/ajnr.a3818] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND AND PURPOSE Cerebrovascular oxygenation changes during respiratory challenges have clinically important implications for brain function, including cerebral autoregulation and the rate of brain metabolism. SWI is sensitive to venous oxygenation level by exploitation of the magnetic susceptibility of deoxygenated blood. We assessed cerebral venous blood oxygenation changes during simple voluntary breath-holding (apnea) and hyperventilation by use of SWI at 3T. MATERIALS AND METHODS We performed SWI scans (3T; acquisition time of 1 minute, 28 seconds; centered on the anterior commissure and the posterior commissure) on 10 healthy male volunteers during baseline breathing as well as during simple voluntary hyperventilation and apnea challenges. The hyperventilation and apnea tasks were separated by a 5-minute resting period. SWI venograms were generated, and the signal changes on SWI before and after the respiratory stress tasks were compared by means of a paired Student t test. RESULTS Changes in venous vasculature visibility caused by the respiratory challenges were directly visualized on the SWI venograms. The venogram segmentation results showed that voluntary apnea decreased the mean venous blood voxel number by 1.6% (P < .0001), and hyperventilation increased the mean venous blood voxel number by 2.7% (P < .0001). These results can be explained by blood CO2 changes secondary to the respiratory challenges, which can alter cerebrovascular tone and cerebral blood flow and ultimately affect venous oxygen levels. CONCLUSIONS These results highlight the sensitivity of SWI to simple and noninvasive respiratory challenges and its potential utility in assessing cerebral hemodynamics and vasomotor responses.
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Dong Y, Lei GW, Wang SW, Zheng SW, Ge Y, Wei FC. Diagnostic value of CT perfusion imaging for parotid neoplasms. Dentomaxillofac Radiol 2013; 43:20130237. [PMID: 24186883 DOI: 10.1259/dmfr.20130237] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES To assess the value of CT perfusion imaging in the differentiation of different histological categorization of benign tumours from malignant tumours in patients with parotid neoplasms. METHODS CT perfusion was successfully performed in 62 patients with parotid neoplasms whose diagnoses were confirmed by surgery or biopsy. The software generated a tissue time-density curve (TDC) and measured blood volume, blood flow, mean transit time and capillary permeability surface product. One-way ANOVA and receiver operating characteristic curves were used to analyse the difference and diagnostic efficacies of all perfusion data between each one of the benign tumours and malignancies. Statistical significance was assigned at the 5% level. RESULTS Pleomorphic adenomas mainly had a gradually ascending TDC. Warthin tumours showed a fast ascent followed by a fast descent. The TDC of basal cell adenomas had a fast ascension followed by a plateau, then a gradual descent. Malignant tumours mainly showed a rapidly ascending curve with a stable plateau. Significant differences were observed in blood flow, blood volume and mean transit time between pleomorphic adenomas and malignant tumours (p < 0.05) as well as in blood flow and blood volume between the Warthin tumours, the basal cell adenomas and the malignant tumours (p < 0.05). Differences in permeability surface between the basal cell adenomas and malignant tumours were significant (p < 0.01). CONCLUSION CT perfusion of parotid gland could provide TDC and perfusion data, which were useful in the differentiation of different histological benign tumours and malignant tumours in the parotid gland.
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Lian J, Yuan L, Ge Y, Chera B, Yoo D, Chang S, Yin F, Wu Q. Intertechnique and Interinstitutional Modeling of the Dosimetry of Organs-at-Risk in Head and Neck IMRT Plans. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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138
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Yuan L, Wu Q, Jiang Y, Li T, Yin F, David Y, Ge Y. Incorporating Trade-Off in Knowledge Modeling of Parotid Dose Sparing in Head and Neck IMRT. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Yang Y, Yuan L, Li T, Ge Y, Yin F, Lee W, Wu Q. Quantitative Comparison of Knowledge-Guided IMRT Planning to Expert Planning for Prostate Cancer. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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140
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Yuan L, Lian J, Chang S, Wu Q, Yin F, Jiang Y, Ge Y. Modeling Organs at Risk Dose Sparing in Head and Neck Tomotherapy and IMRT Plans: A Comparison Study. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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141
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Pang T, Yuan L, Ge Y, Jiang Y, Das S, Yoo D, Yin F, Wu Q. Quality Evaluation of an Automatic VMAT Planning Method for Head-and-Neck Cancer Cases. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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142
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Jiang Y, Yuan L, Wu Q, Yin F, Ge Y. Normal Tissue Toxicity Criteria in Radiation Therapy. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Fu N, Yang X, Ba K, Fu Y, Wei X, Yue Y, Li G, Yao Y, Chen J, Cai X, Liang C, Ge Y, Lin Y. Low-intensity pulsed ultrasound induced enhanced adipogenesis of adipose-derived stem cells. Cell Prolif 2013; 46:312-9. [PMID: 23692089 DOI: 10.1111/cpr.12031] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2012] [Accepted: 01/28/2013] [Indexed: 01/14/2023] Open
Abstract
OBJECTIVE The aim of this study was to investigate effects of low-intensity pulsed ultrasound (LIPUS) on differentiation of adipose-derived stem cells (ASCs), in vitro. MATERIALS AND METHODS Murine ASCs were treated with LIPUS for either three or five days, immediately after adipogenic induction, or delayed for 2 days. Expression of adipogenic genes PPAR-γ1, and APN, was examined by real-time PCR. Immunofluorescence (IF) staining was performed to test for PPAR-γ at the protein level. RESULTS Our data revealed that specific patterns of LIPUS up-regulated levels of both PPAR-γ1 and APN mRNA, and PPAR-γ protein. CONCLUSIONS In culture medium containing adipogenic reagents, LIPUS enhanced ASC adipogenesis.
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Zhang CH, Wang Y, Ge Y. Determination of Five Arsenic Species inPorphyraby Microwave-Assisted Water Extraction and High Performance Liquid Chromatography–Atomic Fluorescence Spectrometry. ANAL LETT 2013. [DOI: 10.1080/00032719.2013.773438] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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145
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Li K, Garrett J, Ge Y, Chen GH. WE-G-103-03: BEST IN PHYSICS (IMAGING) - The Feasibility of An X-Ray Differential Phase Contrast Tomosynthesis System Adapted From a Clinical Digital Breast Tomosynthesis System. Med Phys 2013. [DOI: 10.1118/1.4815663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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146
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Yuan L, Pang T, Ge Y, Li T, Jiang Y, Yin F, Wu QJ. SU-E-CAMPUS-T-05: Quality Evaluation of An Automatic VMAT Planning Method for Head and Neck Cancer Cases. Med Phys 2013. [DOI: 10.1118/1.4815183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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147
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Yuan L, Pang T, Ge Y, Li T, Yin F, Wu QJ. TH-C-137-08: Dosimetric Quality of An Automatic IMRT Planning Method for Head and Neck Cancer Cases. Med Phys 2013. [DOI: 10.1118/1.4815751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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148
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Wu Q, Yuan L, Li T, Ying F, Ge Y. Knowledge-based Organ-at-Risk Sparing Models in IMRT Planning. Pract Radiat Oncol 2013; 3:S1-2. [DOI: 10.1016/j.prro.2013.01.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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149
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Zhou Y, Milham M, Zuo XN, Kelly C, Jaggi H, Herbert J, Grossman RI, Ge Y. Functional homotopic changes in multiple sclerosis with resting-state functional MR imaging. AJNR Am J Neuroradiol 2013; 34:1180-7. [PMID: 23348760 DOI: 10.3174/ajnr.a3386] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE CC is extensively involved in MS with interhemispheric dysfunction. The purpose of this study was to determine whether interhemispheric correlation is altered in MS by use of a recently developed RS-fMRI homotopy technique and whether these homotopic changes correlate with CC pathology. MATERIALS AND METHODS Twenty-four patients with relapsing-remitting MS and 24 age-matched healthy volunteers were studied with RS-fMRI and DTI acquired at 3T. The Pearson correlation of each pair of symmetric interhemispheric voxels of RS-fMRI time-series data was performed to compute VMHC, and z-transformed for subsequent group-level analysis. In addition, 5 CC segments in the midsagittal area and DTI-derived FA were measured to quantify interhemispheric microstructural changes and correlate with global and regional VMHC in MS. RESULTS Relative to control participants, patients with MS exhibited an abnormal homotopic pattern with decreased VMHC in the primary visual, somatosensory, and motor cortices and increased VMHC in several regions associated with sensory processing and motor control including the insula, thalamus, pallidum, and cerebellum. The global VMHC correlates moderately with the average FA of the entire CC for all participants in both groups (r = 0.3; P = .03). CONCLUSIONS Our data provide preliminary evidence of the potential usefulness of VMHC analyses for the detection of abnormalities of interhemispheric coordination in MS. We demonstrated that the whole-brain homotopic RS-fMRI pattern was altered in patients with MS, which was partially associated with the underlying structural degenerative changes of CC measured with FA.
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Sandberg JC, Ge Y, Nguyen HT, Arcury TA, Johnson AJ, Hwang W, Gage HD, Reynolds T, Carr JJ. Insight into the sharing of medical images: physician, other health care providers, and staff experience in a variety of medical settings. Appl Clin Inform 2012; 3:475-87. [PMID: 23646092 DOI: 10.4338/aci-2012-06-ra-0022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Accepted: 11/11/2012] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Scant knowledge exists describing health care providers' and staffs' experiences sharing imaging studies. Additional research is needed to determine the extent to which imaging studies are shared in diverse health care settings, and the extent to which provider or practice characteristics are associated with barriers to viewing external imaging studies on portable media. OBJECTIVE This analysis uses qualitative data to 1) examine how providers and their staff accessed outside medical imaging studies, 2) examine whether use or the desire to use imaging studies conducted at outside facilities varied by provider specialty or location (urban, suburban, and small town) and 3) delineate difficulties experienced by providers or staff as they attempted to view and use imaging studies available on portable media. METHODS Semi-structured interviews were conducted with 85 health care providers and medical facility staff from urban, suburban, and small town medical practices in North Carolina and Virginia. The interviews were audio recorded, transcribed, then systematically analyzed using ATLAS.ti. RESULTS Physicians at family and pediatric medicine practices rely primarily on written reports for medical studies other than X-rays; and thus do not report difficulties accessing outside imaging studies. Subspecialists in urban, suburban, and small towns view imaging studies through internal communication systems, internet portals, or portable media. Many subspecialists and their staff report experiencing difficulty and time delays in accessing and using imaging studies on portable media. CONCLUSION Subspecialists have distinct needs for viewing imaging studies that are not shared by typical primary care providers. As development and implementation of technical strategies to share medical records continue, this variation in need and use should be noted. The sharing and viewing of medical imaging studies on portable media is often inefficient and fails to meet the needs of many subspeciality physicians, and can lead to repeated imaging studies.
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