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Game six - in which I'm on my back in a tunnel again

So now I'm getting ready for the beam to be turned on.  Before each session I have to fast for several hours and drink lot's of water.  I've had my initial introduction to the MR-Linac.

 

MR LinacImage from: https://www.genesiscare.com/au/mrl-hcp/

The picture shows the: 1.5 T MRI scanner (yellow); the magnetron and associated linear accelerator (black); joined by the white tube where the electrons are magnetically turned into the target apparatus, (black); where the gamma-ray photons are produced; and, near the MRI, the 'multileaf collimator'; where the photon beam is shaped before entering the patient.
The whole mechanism rotates so that the radiation is delivered at many different angles; so that it is distributed elsewhere; and concentrated only at the tumour.
Settings are carefully mapped before every treatment by the radiation oncologist before a solution is resolved in the controlling computer. This takes most of the time. When all is set it takes from 15 to 20 minutes to complete the treatment.
 

From the News Release:

July 22, 2020 – Elekta (EKTA-B.ST) announced today that the GenesisCare oncology centre at St. Vincent’s Hospital (Sydney, New South Wales) has started treating patients with Elekta Unity, a radiation therapy system that allows doctors to see a tumour's movements and its exact position during the delivery of therapeutic radiation. St. Vincent’s is the first site of 21 eventual Elekta Unity installations in GenesisCare’s global network to initiate clinical use of the system...

 

I get the feeling that it's still a new toy. Everyone is committed; professional; and very careful. But then, that's been my experience on every hospital visit to date. "We have a very good healthcare system," I think to myself.

The first day I spent about an hour in the tunnel (or so it seemed) and was scanned a couple of times to get used to it then I went across to the CAT scanner where three tiny markers were tattooed above my prostate (in my pubic area) and on my hips (at the side) so that I can be repeatedly put in exactly the same position.

More fun - I don't mind a CAT scan - just another x-ray - child's play compared to a gamma beam.

The next session was a dry planning run of an actual treatment session with just the MRI. As it turned out, not so dry, thanks to all that water.

On my third day in the machine, after well over an hour of setup and planning, the 7 MeV gamma beam became active and cells began to die. Did I imagine a slight tingling or a twinge or two? Possibly. But it's quite loud with the simultaneous MRI so I can't be sure. It was certainly not painful.

The following day I was feeling slightly down emotionally and a little nauseous. Was it as a result of the radiation; or was it because it was raining and miserable, curtailing my usual morning walk?  After my third treatment I was in no doubt.  The radiation was certainly doing something! My bladder and bowels were a mess.

That's when this game suddenly became real. 

My final treatment was on the last day of that 'annus horribilis' 2020.  Although I wasn't feeling chipper I was able to drive to our friends' house and enjoy a fine meal and watch the fireworks on TV, to bring in the New Year, while hearing them boom outside.  The next day wasn't so good. I didn't get out but on the 2nd January got up and walked to the shops (putting on my mask as is now required*).

 

*COVID-19 hotspot

 

The latest COVID-19 outbreak originated around Newport on the northern beaches, thanks to someone recently arrived from the US (it's a US strain) successfully dodging quarantine. Aircrew who have less supervision, and have been trusted to isolate, are suspected. 

There are now reports of past aircrew breaches, occasioning several, thousand dollar, fines. Yet the cost of this breach will be in the tens of millions as clubs, pubs and cafés are closed and the entire northern beaches area is in lock-down, right before Christmas. Many people's Christmas celebrations in Sydney; and all interstate holiday travel; and New Year's eve fireworks watching; have been ruined.

Trust in aircrew has abruptly ended. From now on they will be kept in guarded hotels like everyone else in quarantine. But it's shutting the stable gate after the colt has bolted. Let's hope he hasn't hasn't joined the wild bush horses already.

Thanks to Middle Harbour, Mosman has not been affected by the full lockdown - just increased caution and no travel across the Spit bridge. While this has got the northern beaches under control there are now isolated cases elsewhere, including in Victoria (the same northern beaches/US strain)

Updates to follow.

 

 

It's 12 days since my last treatment.  I walked down to the beach again and I'm almost back to normal.  I suspect that I'm in better shape than I might have been under any of the other options.  And its far more interesting.

So if any of my readers find that they have a prostate tumour I can recommend this treatment option if it's available to you. Remembering that every case is different.

 

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Travel

Peru

 

 

In October 2011 our little group: Sonia, Craig, Wendy and Richard visited Peru. We flew into Lima from Rio de Janeiro in Brazil. After a night in Lima we flew to Iquitos.

Read more: Peru

Fiction, Recollections & News

More on 'herd immunity'

 

 

In my paper Love in the time of Coronavirus I suggested that an option for managing Covid-19 was to sequester the vulnerable in isolation and allow the remainder of the population to achieve 'Natural Herd Immunity'.

Both the UK and Sweden announced that this was the strategy they preferred although the UK was soon equivocal.

The other option I suggested was isolation of every case with comprehensive contact tracing and testing; supported by closed borders to all but essential travellers and strict quarantine.   

New Zealand; South Korea; Taiwan; Vietnam and, with reservations, Australia opted for this course - along with several other countries, including China - accepting the economic and social costs involved in saving tens of thousands of lives as the lesser of two evils.  

Yet this is a gamble as these populations will remain totally vulnerable until a vaccine is available and distributed to sufficient people to confer 'Herd Immunity'.

In the event, every country in which the virus has taken hold has been obliged to implement some degree of social distancing to manage the number of deaths and has thus suffered the corresponding economic costs of jobs lost or suspended; rents unpaid; incomes lost; and as yet unquantified psychological injury.

Read more: More on 'herd immunity'

Opinions and Philosophy

Australia's $20 billion Climate strategy

 

 

 

We can sum this up in a word:

Hydrogen

According to 'Scotty from Marketing', and his mate 'Twiggy' Forrest, hydrogen is the, newly discovered panacea, to all our environmental woes:
 

The Hon Scott Morrison MP - Prime Minister of Australia

"Australia is on the pathway to net zero. Our goal is to get there as soon as we possibly can, through technology that enables and transforms our industries, not taxes that eliminate them and the jobs and livelihoods they support and create, especially in our regions.

For Australia, it is not a question of if or even by when for net zero, but importantly how.

That is why we are investing in priority new technology solutions, through our Technology Investment Roadmap initiative.

We are investing around $20 billion to achieve ambitious goals that will bring the cost of clean hydrogen, green steel, energy storage and carbon capture to commercial parity. We expect this to leverage more than $80 billion in investment in the decade ahead.

In Australia our ambition is to produce the cheapest clean hydrogen in the world, at $2 per kilogram Australian.

Mr President, in the United States you have the Silicon Valley. Here in Australia we are creating our own ‘Hydrogen Valleys’. Where we will transform our transport industries, our mining and resource sectors, our manufacturing, our fuel and energy production.

In Australia our journey to net zero is being led by world class pioneering Australian companies like Fortescue, led by Dr Andrew Forrest..."

From: Transcript, Remarks, Leaders Summit on Climate, 22 Apr 2021
 

 

Read more: Australia's $20 billion Climate strategy

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