German over-engineering about to happen in 10, 9, 8, 7... Future Varian Linacs will have at least double the parts they do nowadays...
Two things:
1. This is merely a state intent to buy Varian on behalf of Siemens. It's not clear if this will go through. There are some regulatory authorities that need to agree to that, both in the US and the EU, if the intent is to fully absorb Varian within Siemens (and not merely "buy" it).There are concerns this may lead to monopoly-siuation in the future. These concerns have also gained momentum during the COVID-outbreak, so timing may not be optimal
2. I envision that this move will put additional pressure on Elekta and all the other players in the market.
a) Siemens makes very good CT and MRI machines. By combining them with Varian accelerators they can now sell a "full suite" of all the hardware a radiation oncology clinic will need (and hopefully ensure full compatibility in the future). I still dream of a combined CT-MRI-scanner, maybe my dreams will finally come true?
b) Siemens has invested heavily in AI over the past years and their software for segmentation is really good. Couple that expertise with Varian's field and they will gain a considerable edge over Elekta. Other vendors, like RaySearch who have proliferated in that field, will come under pressure.
c) Gaining access to Siemens MRI-know-how will give Varian the option to look into MRI-Linacs (if they are interested), something they are currently lacking in their portfolio.
From my point of view, this move will give Varian alot more options and strengthen their position. It also finds Elekta at a rather weak spot (their CEO recently stepped down and the whole COVID-mess may mean less money for clinics to invest on expensive techniques like the MRI-Linac (which is their main focus) and rather try to go for machines that offer quick treatments (fast CBCT, integrated workflow, less personell needed --> Halcyon).
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