Journal of Orthopaedics and Allied Sciences

ORIGINAL ARTICLE
Year
: 2018  |  Volume : 6  |  Issue : 1  |  Page : 33--37

Calculation of the reference bone mineral density values in North Indian population using phantomless quantitative computed tomography


Kewal Arunkumar Mistry1, Rohit Bhoil1, Dinesh Sood1, Pokhraj Suthar2 
1 Department of Radiodiagnosis, Dr. RPGMC, Kangra, Himachal Pradesh, India
2 Department of Radiodiagnosis, Sterling Hospitals, Ahmedabad, Gujarat, India

Correspondence Address:
Dr. Rohit Bhoil
Department of Radiodiagnosis, Dr. RPGMC, Kangra, Himachal Pradesh
India

OBJECTIVE: The objective of the study is to generate reference values of bone mineral density�(BMD) in north Indian population using phantomless quantitative computed tomography�(QCT). MATERIALS AND METHODS: Bone mineral densities were generated from the computed tomography�(CT) scans of 691�patients�(390�males and 301�females, ages 11–85�years) who underwent CT of the abdomen or thorax for indications unrelated to bone diseases. The individuals were divided according to age groups from 11–15 to 80–85�years. BMD was calculated by phantomless QCT software by assessing L1 and L2 vertebrae. RESULTS: For females, the maximum BMD was observed for the age group of 21–25�years (144.67�mg/cc). The overall bone loss per year from 26 to 85�years was 1.62�mg/cc. Greater bone loss was seen from ages of 36–55�years which was 2.18�mg/cc. With bone loss per year being 0.99�mg/cc in ages from 26 to 35�years and 1.41�mg/cc from 56 to 85�years. Regression analysis gave a better fit using third order polynomial of age than did a linear regression line. For males, the maximum BMD was observed for the age group of 21–25�years�(147.67�mg/cc). The overall bone loss per year from 26 to 85�years was 1.2�mg/cc. Regression analysis gave the best fit using linear regression. CONCLUSION: In the study population, the males show a linear relationship between age and BMD with continuous bone loss after the age of 25�years while females demonstrate a more complex relationship between age and BMD with accelerated bone loss in perimenopausal age group.


How to cite this article:
Mistry KA, Bhoil R, Sood D, Suthar P. Calculation of the reference bone mineral density values in North Indian population using phantomless quantitative computed tomography.J Orthop Allied Sci 2018;6:33-37


How to cite this URL:
Mistry KA, Bhoil R, Sood D, Suthar P. Calculation of the reference bone mineral density values in North Indian population using phantomless quantitative computed tomography. J Orthop Allied Sci [serial online] 2018 [cited 2024 Mar 28 ];6:33-37
Available from: https://www.joas.in/article.asp?issn=2319-2585;year=2018;volume=6;issue=1;spage=33;epage=37;aulast=Mistry;type=0