How can I calculate , weighted computed tomography dose index (CTDIW) , volume CT dose index (CTDIVOL ) and dose length product (DLP)?

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Ananthalakshmi Suryanarayanamurthy

It will be at the start of every scan in CT images, they are automated in some of the machines ......

CTDI VOL=CTDIW(dose index) / pitch.

DLP= CTDI vol x scan length

Sajid Bashir

AAPM TG 96 gives a detailed description of calculating CT dose metrics. AAPM TG220 provides methodologies to determine patient-specific dose estimate from CTDI vol. I think these reports are now free to download for non-members also but I am not sure.

Dlama Joseph Zira

You may find this work useful.

Thanks