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Quicker, safer radiation therapy 160 Leaf MLC technology for cancer patients in Mumbai’s Jupiter Hospital

Thursday, June 10, 2010, 18:07 This news item was posted in medical devices category and has 0 Comments so far.

Mumbai-based Jupiter Cancer Institute has opened a facility for quicker, more effective and safer technology machine to deliver radiation doses to cancer patients.

The new device called IGRT/IMRT Linac with 160 Leaf MLC technology makes possible the administration of radiation doses in 2-3 minutes compared to 5-10 minutes in the conventional radiation therapy procedure.

In conventional static-field IMRT, that patient must lie prone for five, eight, 10 minutes as the technician maneuver the linac around.

In this procedure, the radio oncologists deliver a treatment dose; stop and reposition the machine; deliver another dose; stop and reposition the machine; deliver another dose, and so on.

This prolonged radiation procedure often result in a lot of difficulties for cancer patients especially for those suffering from cancer of the prostate etc wher in the urinary bladder needs to be full with urine for more accurate diagnosis of the tumours to target them with radiation.

Staying in radiation machine for longer with fully filled bladder is often a nightmare for cancer patients.

The new machine IGRT/IMRT Linac with 160 Leaf MLC technology achieves the same effect in just two or three minutes via the push of a button as it rotates around the patient in one or more arcs with the radiation continuously on.

As it rotates, the system automatically varies the multileaf collimator (MLC) aperture shape, dose rate, gantry rotation speed and MLC orientation to deliver maximum doses while sparing normal tissue.

The new procedure is safer as it can leave the healthy, normal tissue of the body unharmed while delivering the lethal radiation doses to the cancer affected organ.

A linear accelerator produces abeam of either electrons or very high energy X-rays. The radiation beam can be shaped and directed to match the tumor shape. The beam of radiation is directed on to the patient within an accuracy of 2mm.

This is achieved by a combination of control and shaping of the X-ray beam and accurate patient positioning with respect to the X-ray beam.

Shaping of the beam can be achieved by the use of the primary and secondary collimators. These are large tungsten blocks which can shape the X-ray beam into the appropriate square shape or by cast blocks which are specifically for an individual patient to shield sensitive tissue or structures and can be made to the exact shape.

Radiation beams can also be shaped through multileaf Collimator (MLC). These are fine leaves (usually 1cm wide) that are computer-controlled to match the shape of the tumor.

Use of MLC is now common practice in many countries.

Jupiter Cancer Institute in Thane, Mumbai is claimed to be the first hospital in Maharashtra and Central India to use the IGRT/IMRT Linac with 160 Leaf MLC technology for treatment of cancer patients with radiation.

Jupiter Hospital with the help of Jupiter Foundation has built up a 21 bedded economy wing for comprehensive cancer care for the benefit of the economically challenged patients.

The centre is expected to do about thousand cancer surgeries per annum and treat another thousand cancer patients at subsidised rates.

The patient will get the same quality of treatment and would use the diagnostic services which are being used by local and international patients.

Jupiter Cancer Wing supported by the Jupiter Foundation has also started Charitable OPD thrice a week.

The cancer wing will be managed by highly specialised and comprehensive team of 21 expert consultants, which include oncologists, oncosurgeons, radiotherapists, and hemato-oncologists.

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