Awareness by radiology staff of the difference in radiation risk from two opposing lateral lumbar spine examinations.

1999 ◽  
Vol 72 (854) ◽  
pp. 221-221 ◽  
Author(s):  
R A Nicholson ◽  
A Thornton ◽  
V P Sukumar
Keyword(s):  
Lumbar Spine ◽  
Radiation Risk ◽  
The Difference ◽  
Lateral Lumbar Spine ◽  
Radiology Staff

scholarly journals Ability of radiofrequency echographic multispectrometry to identify osteoporosis status in elderly women with type 2 diabetes

2021 ◽  
Author(s):  
Carla Caffarelli ◽  
Maria Dea Tomai Pitinca ◽  
Antonella Al Refaie ◽  
Elena Ceccarelli ◽  
Stefano Gonnelli
Keyword(s):  
Type 2 Diabetes ◽  
Lumbar Spine ◽  
Elderly Women ◽  
Fragility Fractures ◽  
Dual Energy ◽  
Healthy Controls ◽  
Diagnosis Of Osteoporosis ◽  
X Ray ◽  
The Difference

Abstract Background Patients with type 2 diabetes (T2DM) have an increased or normal BMD; however fragility fractures represent one of the most important complications of T2DM. Aims This study aimed to evaluate whether the use of the Radiofrequency Echographic multi spectrometry (REMS) technique may improve the identification of osteoporosis in T2DM patients. Methods In a cohort of 90 consecutive postmenopausal elderly (70.5 ± 7.6 years) women with T2DM and in 90 healthy controls we measured BMD at the lumbar spine (LS-BMD), at femoral neck (FN-BMD) and total hip (TH-BMD) using a dual-energy X-ray absorptiometry device; moreover, REMS scans were also carried out at the same axial sites. Results DXA measurements were all higher in T2DM than in non-T2DM women; instead, all REMS measurements were lower in T2DM than in non T2DM women. Moreover, the percentage of T2DM women classified as “osteoporotic”, on the basis of BMD by REMS was markedly higher with respect to those classified by DXA (47.0% vs 28.0%, respectively). On the contrary, the percentage of T2DM women classified as osteopenic or normal by DXA was higher with respect to that by REMS (48.8% and 23.2% vs 38.6% and 14.5%, respectively). T2DM women with fragility fractures presented lower values of both BMD-LS by DXA and BMD-LS by REMS with respect to those without fractures; however, the difference was significant only for BMD-LS by REMS (p < 0.05). Conclusions Our data suggest that REMS technology may represent a useful approach to enhance the diagnosis of osteoporosis in patients with T2DM.

P13. Posterior lateral lumbar spine fusion with silicate substituted calcium-phosphate

2005 ◽  
Vol 5 (4) ◽  
pp. S116
Author(s):  
Donna Wheeler ◽  
Jason Marini ◽  
Matthew Kovach ◽  
Tatiana Motta ◽  
Amy Lyons ◽  
...  
Keyword(s):  
Lumbar Spine ◽  
Calcium Phosphate ◽  
Spine Fusion ◽  
Lumbar Spine Fusion ◽  
Lateral Lumbar Spine

Effect of PACS on patient radiation doses for examination of the lateral lumbar spine

1998 ◽  
Author(s):  
Gwyneth C. Weatherburn ◽  
Stirling Bryan ◽  
Martin J. Buxton
Keyword(s):  
Lumbar Spine ◽  
Radiation Doses ◽  
Lateral Lumbar Spine

scholarly journals A history of spine surgery predicts a poor outcome after hip arthroscopy

2019 ◽  
Author(s):  
Jacob D Feingold ◽  
Braiden Heaps ◽  
Sava Turcan ◽  
Erica Swartwout ◽  
Anil Ranawat
Keyword(s):  
Lumbar Spine ◽  
Spine Surgery ◽  
Hip Arthroscopy ◽  
Spine Fusion ◽  
Harris Hip Score ◽  
Lumbar Spine Surgery ◽  
P Value ◽  
Decompression Surgery ◽  
Outcome Score ◽  
The Difference

Abstract This study compared patient reported outcomes scores (PROMs) between patients undergoing hip arthroscopy who have and have not had previous lumbar spine surgery. We aimed to determine if prior spine surgery impacts the outcome of hip arthroscopy. Data were prospectively collected and retrospectively reviewed in patients who underwent hip arthroscopy between 2010 and 2017. Twenty cases were identified for analysis and matched to a control group. Four PROMs were collected pre-operatively and between 6 months and 2 years post-operatively (mean 16.2 months): Modified Harris Hip Score (mHHS), Hip Outcome Score-Activities of Daily Living (HOS-ADL), Hip Outcome Score-Sports (HOS-Sports) and the 33-item International Hip Outcome Tool (iHOT-33). Patients with previous spine surgery reported significantly worse (P-value <0.001) post-operative scores on all PROMs and smaller net changes on all PROMs with the difference on the mHHS (P-value 0.007), HOS-Sport (P-value 0.009) and iHOT-33 (P-value 0.007) being significant. Subsequent analyses revealed that the type of spine surgery matters. Patients with a spine fusion reported worse post-operative scores on all PROMs compared with patients with a spine decompression surgery with the difference on the mHHS (P-value 0.001), HOS-ADL (P-value 0.011) and HOS-Sport (P-value 0.035) being significant. Overall, patients with prior decompression surgery experienced considerable improvements from hip arthroscopy whereas patients with a prior spine fusion reported poor post-operative outcomes. Given these results, it is vital that hip preservation surgeons understand the impact of the lumbar spine on the outcome of hip arthroscopy.

scholarly journals The influence of physique on dose conversion coefficients for idealised external photon exposures: a comparison of doses for Chinese male phantoms with 10th, 50th and 90th percentile anthropometric parameters

2017 ◽  
Vol 58 (5) ◽  
pp. 737-744 ◽  
Author(s):  
Wei Lv ◽  
Hengda He ◽  
Qian Liu
Keyword(s):  
Anatomical Variation ◽  
Radiation Risk ◽  
Organ Dose ◽  
Normal Weight ◽  
Adult Males ◽  
Fat Percentage ◽  
Anthropometric Parameters ◽  
Chinese Adult ◽  
Conversion Coefficients ◽  
The Difference

Abstract For evaluating radiation risk, the construction of anthropomorphic computational phantoms with a variety of physiques can help reduce the uncertainty that is due to anatomical variation. In our previous work, three deformable Chinese reference male phantoms with 10th, 50th and 90th percentile body mass indexes and body circumference physiques (DCRM-10, DCRM-50 and DCRM-90) were constructed to represent underweight, normal weight and overweight Chinese adult males, respectively. In the present study, the phantoms were updated by correcting the fat percentage to improve the precision of radiological dosimetry evaluations. The organ dose conversion coefficients for each phantom were calculated and compared for four idealized external photon exposures from 15 keV to 10 MeV, using the Monte Carlo method. The dosimetric results for the three deformable Chinese reference male phantom (DCRM) phantoms indicated that variations in physique can cause as much as a 20% difference in the organ dose conversion coefficients. When the photon energy was &lt;50 keV, the discrepancy was greater. The irradiation geometry and organ position can also affect the difference in radiological dosimetry between individuals with different physiques. Hence, it is difficult to predict the conversion coefficients of the phantoms from the anthropometric parameters alone. Nevertheless, the complex organ conversion coefficients presented in this report will be helpful for evaluating the radiation risk for large groups of people with various physiques.

scholarly journals Validity of flexicurve for the assessment of spinal flexibility in asymptomatic individuals

2020 ◽  
Vol 33 ◽  
Author(s):  
Marja Bochehin do Valle ◽  
Vinícius Hoffmann Dutra ◽  
Cláudia Tarragô Candotti ◽  
Juliana Adami Sedrez ◽  
Edgar Santiago Wagner Neto ◽  
...  
Keyword(s):  
Lumbar Spine ◽  
Reference Value ◽  
Relevant Information ◽  
Neutral Position ◽  
Maximum Flexion ◽  
Spinal Flexibility ◽  
Rms Error ◽  
The Difference ◽  
Asymptomatic Individuals ◽  
Flexion And Extension

Abstract Introduction: Spine problems are common, and assessment of spine flexibility provides relevant information; however, alternative evaluation methods need to be validated. Objective: To evaluate the concurrent validity of the Flexicurve using 3D videogrammetry as a reference value to assess spinal flexion and extension in the lumbar and thoracic regions. Method: The consecutive sample consisted of 39 individuals aged between 18 and 50 years. Two consecutive evaluations were performed by the same rater on the same day and at the same location: (1) Flexicurve and (2) 3D videogrammetry. The assessments were performed with the spine in the neutral position, followed by maximum flexion and extension. The range of motion (ROM) in the maximum flexion and extension positions was calculated in MATLAB® and defined as the difference between the maximum flexion or extension angle and that of the neutral position. Statistical analyses used were the Pearson Product-Moment Correlation coefficient, RMS error and Bland-Altman plot (α < 0.05). Results: The ROM between instruments was similar, with high correlations for thoracic flexion (r = 0.751), extension (r = 0.814) and lumbar flexion (r = 0.853), and RMS errors under 8°. The correlation for lumbar extension was moderate (r = 0.613) and the RMS error was more than 10°. The limits of agreement varied between ± 10º and ± 21º. Conclusion: The Flexicurve is valid for assessing maximum flexion and extension of the thoracic spine, and maximum flexion of the lumbar spine. We suggest caution in evaluating the maximum extension of the lumbar spine.

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