The patient is automatically moved head first into the CT gantry, and the x-ray tomogram is acquired. Now the patient is automatically moved through the PET gantry, which is mounted in parallel with the CT gantry, and the PET slices are acquired. The patient may now leave the device, and the PET-CT software starts reconstructing and aligning the PET and CT images.
Diagnostic Procedures. Three common diagnostic procedures, tonometry, visual field tests, and ophthalmoscopy, enable ophthalmologists to screen patients for glaucoma. To make a definitive diagnosis, ophthalmologists often use all 3 procedures as part of an overall eye examination. The procedures are simple, relatively quick, and virtually painless.
1 Think of the SLT as equivalent to one glaucoma medication. 2  Just as some patients will require more than one glaucoma medication to control their IOP, some may also require laser plus one or more glaucoma medications. 3  It is important to remember that SLT is not a cure for glaucoma, just as medication and surgery are not. Who is a candidate for SLT? 2  Patients who have open-angle glaucoma (the drainage system in the front part of the eye is open) and are in need of lowering of their intraocular pressure (IOP) are eligible for the procedure. 3  Your eye doctor will make the final determination if you are a candidate.