Cobalt-60: Cobalt-60: No time for retirement No time for retirement - - PowerPoint PPT Presentation

Cobalt-60: Cobalt-60: No time for retirement No time for retirement

KA Dinshaw, T. Gupta,

• S. K. Shrivastava

Department of Radiation Oncology Tata Memorial Centre, Mumbai, INDIA

R Sarin, UICC 2008

Cancer Care Disparity: A Harsh Reality

M Barton, Lancet Oncol 2004

Economic Factors

• Health budget < 2% of GNP
• Competing public health issues
• Despite

sustained & high economic growth rate, the high cost of imported Linacs & the Telecobalt machines would remain a deterrent for filling the shortfall

• f 700 units within an acceptable

time frame

Cobalt-60 for India (and developing countries):

Still scope for large-scale deployment and need for developing, promoting & sustaining indigenous development Cobalt: Indigenous Machine

• Telecobalt useful for cancers

prevalent in India (H & N, cervix, chest wall) & all palliative cases (2/3rd cases)

• Rugged performer (workhorse) in

diverse conditions

• Low cost of installation, running,

& maintenance

• Indigenous technology is low-

cost, yet technically at par or even better at some parameters

Innovations with Cobalt-60: How do we scale up?

Physical Compensator based precision radiotherapy

Multi-leaf Collimator (MLC) design for Cobalt-60 head IGRT (Integration of MRI with Cobalt-60) Adaptive Radiotherapy with Cobalt-60 Tomotherapy

Compensator plan vs MLC IMRT plan: Indistinguishable

Fluence transfer for milling Lesser MUs with compensator based IMRT

T Kron, JMP 2006

Schematic illustration of Cobalt-60 Tomotherapy

A commercial telecobalt adapted for prototype Co-60 tomotherapy

A face? ... Or, the word 'liar' ?

Thanks