Can anybody tell me a little detail about how the SPECT is performed?
For my Xenon CT, I had to lay down, with a gas mask on my face. Then something was injected through my arm, and I was pushed into a machine like a huge black tube. The whole test lasted about 20~30 minutes divided into 3 "waves". There are 2 minutes rest between each wave. The first wave is the shortest, then 2nd longer, 3rd the longest. During each wave, once the test started, I can feel my heart being pumped faster and faster, I felt that my heart might jump out from my mouth, my head felt spinning, nauseous, feeling like riding a roller coaster downward at sound speed. At the same time, I heard huge water wave kind of whooshing noise in my head, I felt totally lost control. I was told try not to move before it started, but I really debut whether I CAN move at that moment.
I was told by the doctor that not many people can finish all three waves. I couldn't help vomiting a little toward the end of the 3rd wave. I only throw up water since I didn't eat. They have to end the test once I vomitted. But the doctor said that the pictures they captured were good enough for surgery since I behaved well since the begining. I didn't move at all even when vomitting.
The scary part of Xenon CT for me is not dizzy or unbearable heart rate, it's the feeling of lost control scared me the most. I'm not use to it. I like to be able to control myself and my body........
After cleaned up my vomitting, I felt OK for the rest of the day. I can walk around freely, I just drunk lots of water according to the doctor to wash out the medicine in my blood.
When I went back Japan last November for check up, I took Xenon CT again. This time since I've already known what to expect, instead of letting the medicine drove my body nuts for a wild ride, I used a little bit of Zen technic (or meditation or whatever you call it) to focus my mind on something else during the whole test, and I MADE IT! I made through all 3 waves without moving or vomitting, and I didn't feel much discomfort. I walked myself back to my room right after the test without any problem.
So if anyone can elibrate me a little about SPECT, I can be prepared and make the journey a little easier.

Thanks in advance.
LuckyMe