This would have made a better movie, but that's to fill in all the insanity with explanations. It does bother me WHY in this huge hospital no one else is in the morgue and no one else is in or using the imaging chamber. It's just conveniently empty and not a tech in sight. But I still enjoyed it!
I actually think the explanation was in the episode (although it was glossed over): our crew arrived during shift change in the middle of the night. . . during those few minutes, no one would be in the morgue, and because it was at night, the scanning room would most likely be empty. It's convenient, but it was planned that way.