In medicine, innovative things happen all the time. When *you* go to the doctor, you get the same ol' thing that has been done since 1952.
I don't know why I'm even bothering to respond to someone who writes down such utter bollocks, but I'll bite.
The very first cancer patient was treated with cobalt-60 irradiation in late 1951, in London, Ontario--so I suppose that slips into your 1952 window (though the instruments used in those preliminary 1951 tests bear very little resemblance to those used today). The first use of a clinical linear accelerator for high-energy radiotherapy wasn't until 1956, at Stanford.
The first clinical x-ray CT scanner was used in 1971; it took five minutes to collect a slice of data, and more than two hours to process that data into a rather low-resolution image. PET scanning using FDG started around 1976. The first commercial MR imagers appeared around 1980, after a decade or so of futzing about with technical challenges.
The drug cisplatin wasn't approved by the FDA until 1978; it was the first discovered of a line of platinum-containing antineoplastic drugs. The drug taxol received FDA approval in late 1992. It was the first clinically-used taxane, a family of compounds which inhibit microtubule formation and thereby disrupt cell division. Rituximab was approved in 1997. It was the first anti-cancer monoclonal antibody therapy; there are now more than a dozen. Imatinib was the first small-molecule kinase inhibitor for cancer therapy, approved in 2001.
All of the above techniques and therapies are available to *you* and in routine use today - when they haven't been superseded by even newer developments. I hate to break it to you, but this ain't your grandma's oncology.