Earlier this week I had to have a hospital test that was new to me. In order to find out why food stays in my stomach more than the normal 3 to 5 hours (gastroscopies and ultrasound have shown it to be there for over 16 hours after I have fasted), I was urged to have a Delayed Gastric Emptying Study (DGES). I am pretty sure the culprit will be the pyloric valve damaged at the base of my stomach by the operation I had ten years ago (see here), but this test was just to make sure there was no other reason for the hold-up.
So last week, I made my way to the Nuclear Medicine Department of Guy's Hospital near London Bridge for my appointment there. The word "Nuclear" is scary enough. Would I glow in the dark afterwards? I had to present myself fasting and that included drinking no water either. Having to negotiate the hour-long journey from home to London Bridge - in morning rush-hour on busy trains without breakfast and not even a sip of water - was hard.
On arriving at the Nuclear Medicine Department, I was eventually ushered into this room to a seat in the corner, from where the photo was eventually taken. This is where I was to spend the next 2 and a half hours.
I was asked to wear a plastic apron and gloves to avoid any radioactive spillage on me. In front of me was a trolley with 5 small paper cups. In each was about 2 inches (5 cm) of a beige milky-like substance with radioactive content. I had to swallow the contents of cup 1 and then a nurse timed me to wait 2 minutes before I drank the 2nd cup, then timed 2 minutes until I drank the 3rd cup and so on, until all 5 cupfuls had been consumed. I was then asked to stand between the two upright plates you see in the photo, while they adjusted them to get my stomach visible on the adjacent computer screen, seen to the right near the ceiling on the photo. When I was in the correct position, with arms raised out of the way, they pressed a button on the computer screen and it timed 30 seconds to take the picture. I was then told to sit down again and the radiographer disappeared into the office next door to kill time.
Five minutes later I was asked to stand in front of the plates again and repeat the process of filming for 30 seconds. This happened every 5 minutes over the next half hour. Luckily I had brought a book with me and, despite the loud humming of the equipment and hardness of the chair, not to mention the frequent interruptions every 5 minutes to ask me to stand in front of the x-ray plates, the time passed reasonably quickly. However, then we had to repeat all of this every 10 minutes for the next hour and every 15 minutes for the next half hour. I was in that room for two and a half hours in all.
I did ask why they had got me to drink liquids, as I would imagine they trickle through that awkward valve quite easily and my consultant had expressly said that solids in the stomach behave differently from liquids which is why she wanted this test done using solids rather than a Barium meal x-ray . The staff seemed perplexed by my question and said, in that case, the test may have to be done again at a later date with porridge instead of the drink. In the meantime they would send their report to my consultant and see what she says. It is obvious something got lost in translation between my consultant and the Nuclear Medicine Department. We shall have to see whether the test was conclusive or absolutely pointless.
