CT is in layman’s terms, it’s an X-ray machine hooked up to a computer. When we are scanning the patient we lay the patient flat on the table. CT uses a thin, pencil-thin beam to take cross-sectional images of the patient’s body. The beam rotates around the patient’s body and we slice the patient’s body like a loaf of bread. That’s how CT scans.” “It’s utilizing radiation to take the images.” “It needs to be quick because in this day and age of course, the biggest concern we have being in imaging and radiology is to keep the doses as low and as safe as possible but still give us that good quality diagnostic study.”
Magnetic Resonance Imaging:
“MRI stands for Magnetic Resonance Imaging. “MRI images the water molecules in the body and it does that with a very strong magnetic field which is the big round cylindrical tube, that’s the magnetic field in there.” “So if the patient were to lay down on the table right now, we would place their shoulder into that coil and between the radio frequency, the strong magnetic field, and the coil, which acts as an antenna, we are going to produce images of the soft tissue and the bone, with MRI.” that’s one of the things most people get the most confused on. A typical MRI is going to take at least 30 minutes. A CT scan is typically 5 minutes. CT is using radiation just like X-ray would be. CT is going to be excellent for organs in the body. It’s going to be excellent for bony detail. MRI on the other hand, uses no radiation at all. It’s using a strong magnetic field and radio frequency and its specialty is soft tissue quality scan they’re going to get, and the radiologist reading it on the other end is very good.
Medicare and Medicaid now cover the scan … for people between the ages of 55 and 80 who have either smoked or have quit but have a history of a pack-a-day for 30 years or 2 packs a day for 15.You also may be eligible if you’ve been exposed to environmental hazards like asbestos. If that’s you … recommendations are that you should get a CT lung screening once a year “We want them to go in and ask their doctor for a low-dose CT scan, we don’t want them to wait until they get referred out or misdiagnosed for months, which is what leads to the stat right now that most people in our country are getting diagnosed with lung cancer in Stages III and IV.” Almost 5 years after her diagnosis, Each year Rachel holds a memorial vigil … hoping to spread the word.
CT Scanning X-Rays:
CT scanning uses x-rays the team at Derriford are some of the most experienced in the world and have a very good record of keeping our x-ray levels to a minimum the overall risk from this test is therefore low the scan itself is painless lasting just a few seconds please expect to be in the department for 30 to 60 minutes need to remove metal objects around your neck and chest including any clothing with metal clips or buttons necklaces and anything in your top pockets, like coins or phones.
X ray dye later on you will be asked a number of medical problems you might have and whether you’ve had X ray dye before once you come into the scan room, you’ll be asked to lie down on the scanner bed have sticky dots attached your chest so we can monitor your heartbeat which is an important part of how the CT scanner works. You’ll will then ask you to practice holding your breath as well as seeing how long can manage we’re also watching what happens to your heart rate the scanner works by taking pictures in between heartbeats when your heart is still if your hearts too fast.
Beta blockers are very safe and most people tolerate them very well they’re a little different to the tablets that some patients had before and they work very quickly but wear off quickly too. there quite selective which means they mostly work just on the heart which also helps to reduce side effects most people don’t notice that had to beta blockers at all you’ll then be connected to the x-ray dye you’ll move in and out of the scanner a few times for some planning scans to be asked to breathe in and hold your breath each time it’s important you try and take roughly the same size breaths on each occasion the radiographer will warn you when the x-ray dyes about to start the dye might give you a strange taste in your mouth or make you feel warm all over it may get so warm down below.
You’ve wet yourself you won’t have done but it’s a strange feeling. these things wear off quickly within a few seconds. they are normal so trying to ignore them and concentrate on holding a breath. if you breath during the scan or your heart rate is too fast. we might need to do it again if not that’ll be the end the scan and you’ll be free to leave the room the results be sent to the doctor there quested the test %uh we like you to stay in the department for about 10 minutes after the scan or 20 minutes if we’ve given you beta blockers. by this time the beta blockers would have reached their maximum effect it’s important you bring your medicines on the day of your test or list of what you currently taking so we can make sure it’s safe to give you beta blockers and x-ray dye.
Some people are allergic to X-rayed dye so let us know if you had any problems with it before please don’t stop any of your medicines before the scan this is different to some other heart tests you may have had it is essential you don’t have any caffeine before you come for your scan this includes tea coffee chocolate and particularly cola or energy drinks.
All of which contain enough caffeine to raise your heart rate we need your heart rate to be as stable as possible so please try to give yourself plenty of time to get here, don’t overexert yourself on the way in. it might be helpful to practice holding a breath before you come for your appointment we need about 15 to 20 seconds. we recommend that someone brings you to the hospital or that you use public transport should be safe to drive but we cant always guarantee.