Neurology India Medknow Publications on behalf of the Neurological Society of India ISSN: 0028-3886 EISSN: 1998-4022 Vol. 59, Num. 2, 2011, pp. 324-324

Neurology India, Vol. 59, No. 2, March-April, 2011, pp. 324

Correspondence

Authors' reply

Madhavi Tripathi¹, Manjari Tripathi², Deepti Vibha², Naveen Gowda¹, Chandrashekhar Bal¹, Arun Malhotra¹

¹ Department of Nuclear Medicine, All India Institute of Medical Sciences (AIIMS), New Delhi, India
² Department of Neurology, All India Institute of Medical Sciences (AIIMS), New Delhi, India

Correspondence Address: Madhavi Tripathi, Department of Nuclear Medicine, All India Institute of Medical Sciences (AIIMS), New Delhi, India, madhu_deven@yahoo.com

Date of Submission: 08-Feb-2011
Date of Decision: 21-Mar-2011
Date of Acceptance: 22-Mar-2011

Code Number: ni11100

Sir,

We thank Dr. Wiwanitkit for his interest in our article. ^[1],[2] In case of dilated ventricles as in patients with normal pressure hydrocephalus there would be a generalized or global cortical perfusion deficit, hypoperfusion affecting selective areas like parietal and temporal or frontal and temporal cortices would not be observed as is expected in AD or FTD. We agree that we should include larger number of subjects in each group to increase the statistical validity of the data. Regarding the cost effectiveness of the perfusion SPECT done with ECD, it is comparable to the cost of a head NCCT and cheaper than routine MRI of the brain. In fact in India ECD kits are available from BRIT (Mumbai) at very economical pricing and in government hospitals the study costs between Rs 500 to Rs 1500 (US$ 10-30) only.

References

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