Made by Canon around the time that Golan and Globus looked as though they might just be able to break into the big leagues, X-ray/ Hospital Massacre hits above expectations.
Intended and made as an American slasher to cash in on the video market of the time, this actually plays a lot like the Italian Gialli being produced around the same time, which I for one consider a great plus point!
The use of light and shadow to introduce interesting visuals and atmosphere to innocuous places such as staircases fits more with the low budget films of Italy rather than America, as does the use of a dissonant score that would almost act as a Greek chorus if either budget or imagination hadn't led to the repetition of a number of cues.
Although the kill rate is high enough to qualify as a slasher, each murder is directed towards an (admittedly crazy) goal, with nobody except the victim even believing that they are happening, which again I would say takes us closer to giallo territory than your standard slasher.
Add that to a motive of revenge for a childhood slight and a prioritization of feeling over logic in the action and you've got almost all the elements there.
Replace the latex gloves with black leather and it would only be the synchronization of the sound that differentiates it from a giallo of the same period, would recommend to anyone that has a fondness for Italian films of the period.