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Orthopedics and Osteoporosis 2018
N o v e m b e r 2 9 - 3 0 , 2 0 1 8
Am s t e r d a m , N e t h e r l a n d s
Page 24
Journal of Clinical & Experimental Orthopaedics
ISSN: 2471-8416
E u r o p e a n C o n f e r e n c e o n
Orthopedics and
Osteoporosis
T
he scintimetric characterization of the skeletal hot spots by the Dr V
Siva’s retention ratio had been reported in the differentiation of benign
lesions from the metastatic ones in the case of carcinoma prostate primarily.
The routine bone scan was done 4 hours after the intravenous injection of
20 to 25 mCi of Tc-99m MDP. In the case of those patients with detectable
skeletal hotspots, the scan repeated 24 hours post-injection time next day.
The maximum counts at the hot spot were calculated in the 4 hr and 24 hr
scan images. The Dr V Siva’s retention ratio was calculated by diving the 4
hr counts by 24 hr counts. Israel's ratio obtained by the division of 24-hour
lesion/non-lesion ratio with the 4 hr lesion/non-lesion ratio was decimal
in nature. Our Dr V Siva’s retention ratio was the full integer. Hence useful
classification range was established. The Benign lesions had the value ≤5.
The degenerative and traumatic lesions had the intermediate range of 5-10.
The malignant metastatic range was found to be 10 and above. The same
had been found to be useful in the evaluation of causes of a delayed union of
fractures. The utility of this method in the characterization and evaluation of
the rheumatoid arthritis patients had also been documented. The addition of
scintimetric characterization of fracture site by Dr V Siva’s retention ratio along
with the triple-phase bone scan findings helps in the proper identification of
the underlying pathological process clearly had been documented. The scope
and applicability of the scintimetric characterization by Dr V Siva’s retention
ratio in the evaluation of skeletal trauma, infections, sports related injuries and
solitary skeletal neoplastic conditions will be discussed emphasizing the need
for further exploration of this technique to confirm its authenticity
Biography
V Siva Subramaniyan is a Doctoral Research Scholar pursuing
his research in the area of Scintimetric characterization in the
University SSSIHL, Prasanthinilayam under the guidance of
Prof K Venkataramaniah. He is a Senior Radiologist, Consultant
Nuclear Medicine Physician and Imaging Specialist. He was
awarded Dr Ashok Mukherjee Gold Medal for the best young
Radiologist of the country in the year 1999 for his research
work by the Indian Radiological and Imaging Association-IRIA.
He was invited to present his research work as Poster in the
IPET 2015 organized by IAEA at Vienna. He is pursuing his
research and academic work. He has delivered more than 75
presentations, 9 thesis guidance and 10 publications to his
credit.
drvsiva@outlook.comOrthopaedic applications of scintimetric characterization by
Dr V Siva’s retention ratio
V Siva Subramaniyan and K Venkataramaniah
SSSIHL, India
V Siva Subramaniyan et al., J Clin Exp Orthop 2018, Volume: 4
DOI: 10.4172/2471-8416-C1-005