CNN-based qualitative detection of bone mineral density via diagnostic CT slices for osteoporosis screening

Author(s):  
C. Tang ◽  
W. Zhang ◽  
H. Li ◽  
L. Li ◽  
Z. Li ◽  
...  
2012 ◽  
Vol 19 (10) ◽  
pp. 1273-1282 ◽  
Author(s):  
Wei-Liang Tay ◽  
Chee-Kong Chui ◽  
Sim-Heng Ong ◽  
Alvin Choong-Meng Ng

2019 ◽  
Vol 10 ◽  
pp. 215145931984740 ◽  
Author(s):  
Christina M. Ward ◽  
Mark A. Arnold ◽  
Osa Emohare

Introduction: This study examines how many patients with distal radius fracture (DRF) eligible for bone health evaluation could potentially be screened using bone mineral density (BMD) estimation by L1 vertebra computed tomography (CT) attenuation obtained for other purposes. Materials and Methods: For all adult patients with DRF who presented over a 5-year period, we recorded the age, sex, dual-energy X-ray absorptiometry (DXA) results up to 3 years prior to injury or 1 year post-injury, and L1 CT attenuation on any CT including L1 that had been performed within 6 months of their fracture. 1 We compared the availability of L1 CT attenuation measurement to the rate of DXA scan use. We calculated the percentage of patients with osteoporosis and compared attenuation results to DXA results in those patients where both tests were available. Results: Of 1853 patients with DRF, an L1 CT had been obtained in 195 patients. Of the 685 patients who met criteria for osteoporosis screening, 253 (37%) patients had undergone only DXA screening, 68 (10%) patients had an L1 CT only, and 18 (2%) patients had both tests. Of the 86 patients who met criteria for osteoporosis screening and had an adequate CT, 67 (78%) demonstrated L1 attenuation <135 HU, and 79 (92%) had CT attenuation <160 HU. Discussion: Our study found that 10% of patients with a distal radius fracture who met the criteria for osteoporosis screening had a CT scan that could be used to estimate bone density and that the majority of those patients met criteria for osteoporosis based on CT attenuation. Conclusions: Utilization of opportunistic BMD screening with L1 CT attenuation offers the potential to increase osteoporosis screening from 40% to 50% of eligible patients and make the diagnosis of osteoporosis in an additional 8% of patients with DRF at no additional cost.


2019 ◽  
Vol 10 ◽  
pp. 215145931982861
Author(s):  
Glenn E. Lee ◽  
Scott Muffly ◽  
Gregory J. Golladay

Introduction: Approximately 320 000 fragility hip fractures are sustained in the United States annually, resulting in substantial morbidity and mortality as well as significant economic burden on the health-care system. Nevertheless, a majority of these patients are not screened and do not receive treatment for osteoporosis. The objective of this study was to evaluate rates of osteoporosis screening and treatment in our institution and compare them to those reported in the literature. Methods: This was a retrospective cohort study of 191 patients ages 50 and older who sustained osteoporotic hip fractures. Primary outcome measures were percentage of patients who (1) underwent bone health laboratory workup during admission, (2) were started on vitamin D, calcium, and/or a bisphosphonate, (3) received bone mineral density testing, and (4) followed up with a primary care doctor or endocrinologist. Secondary outcomes measures were (1) whether gender, race, or age influenced our primary outcomes and (2) whether obtaining in-hospital laboratory workup led to increased rates of further screening and treatment. Results: Fifty-six (29.3%) patients received full laboratory workup, 48 (25.1%) were prescribed vitamin D and calcium, 11 (5.7%) were prescribed a bisphosphonate, 13 (6.8%) underwent bone mineral density testing, and 41 (21.5%) followed up with primary care or endocrinology. Discussion: Women were more likely to be treated with vitamin D and calcium. Outcomes were similar regardless of race. Younger patients were more likely to undergo laboratory testing, bisphosphonate therapy, and bone mineral density testing. Initiating workup during admission did not lead to increased rates of outpatient treatment. Conclusion: Despite nationwide efforts to improve, rates of osteoporosis screening and treatment following hip fracture are suboptimal. Rates at our institution are similar to those reported in previous studies. There were disparities between gender and age groups. Future studies are needed to evaluate whether more recently implemented policies lead to better osteoporosis screening and management.


Bone ◽  
2011 ◽  
Vol 48 (5) ◽  
pp. 1087-1094 ◽  
Author(s):  
Alexander H. Habashy ◽  
Xiaowei Yan ◽  
J. Keenan Brown ◽  
Xiaoping Xiong ◽  
Sue C. Kaste

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