
This allows orthodontists to determine the best way of correctly aligning the teeth and jaw bone with braces or Invisalign treatments. X-rays also show any underlying issues, such as tooth abscesses. These may need to be fixed before orthodontic treatment can begin.
Is an xray necessary?
Sep 02, 2020 · monitor the progression of a diagnosed disease, such as osteoporosis. check how well a prescribed treatment is working. Conditions that may call for an X-ray include: bone cancer. breast tumors ...
Do you have to prepare for a diagnostic X ray?
X-rays, formally referred to as radiographs, are common imaging procedures ordered by healthcare providers and dentists. X-ray machines pass x-ray beams (a form of ionizing radiation) through a part of the body to produce images of the tissue, organs, bones, or teeth inside. These images allow healthcare providers and dentists to see if there ...
When did X-ray become an essential tool in medicine?
While diagnostic X-ray procedures are generally safe and very effective, there is some exposure to radiation. However, the benefits of early detection and treatment far outweigh the risks. Some people have an allergic reaction to contrast media, which is used in certain diagnostic X-rays.
Do I need an X-ray before starting physical therapy?
Anybody who had a little bit of money could make themselves a cathode ray tube and take pictures. One of the most interesting aspects of the history is how X-rays became medical. They weren’t always medical. Early in the 20 th century lay entrepreneurs would set up stands to take X-rays at the opera house. People would set up stands on the ...

What is the procedure for X-rays?
Although each facility may have specific protocols in place, generally, an X-ray procedure follows this process: The patient will be asked to remove any clothing or jewelry which might interfere with the exposure of the body area to be examined. The patient will be given a gown to wear if clothing must be removed.
How to do X-rays?
Although each facility may have specific protocols in place, generally, an X-ray procedure follows this process: 1 The patient will be asked to remove any clothing or jewelry which might interfere with the exposure of the body area to be examined. The patient will be given a gown to wear if clothing must be removed. 2 The patient is positioned on an X-ray table that carefully positions the part of the body that is to be X-rayed--between the X-ray machine and a cassette containing the X-ray film or specialized image plate. Some examinations may be performed with the patient in a sitting or standing position. 3 Body parts not being imaged may be covered with a lead apron (shield) to avoid exposure to the X-rays. 4 The X-ray beam will be aimed at the area to be imaged. 5 The patient must be very still or the image will be blurred. 6 The technologist will step behind a protective window and the image is taken. 7 Depending on the body part under study, various X-rays may be taken at different angles, such as the front and side view during a chest X-ray.
Can X-rays be used during pregnancy?
X-ray technology is used in other types of diagnostic procedures, such as arteriograms, computed tomography (CT) scans, and fluoroscopy. Radiation during pregnancy may lead to birth defects. Always tell your radiologist or doctor if you suspect you may be pregnant.
How are X-rays made?
X-rays are made by using external radiation to produce images of the body, its organs, and other internal structures for diagnostic purposes. X-rays pass through body structures onto specially-treated plates (similar to camera film) or digital media and a "negative" type picture is made (the more solid a structure is, ...
What is an X-ray?
X-ray imaging tests are painless procedures that allow doctors to diagnose diseases and injuries without being invasive. These tests also help doctors to: Determine whether surgery is a good treatment option. Locate tumors for treatment. Determine joint replacement options and treatment for fractures.
Is x-ray radiation dangerous?
As in many areas of medicine, there are risks associated with the use of x-ray imaging, which uses ionizing radiation to create images of the body. Because the amount of radiation used in a normal x-ray procedure is small, there is a small risk for the patient. However, it is still important for patients to understand what to do if an x-ray ...
What is radiation in medicine?
Radiation in Medicine: X-Rays. An x-ray is an image created on photographic film or electronically on a digital system to diagnose illnesses and injuries. During this type of medical imaging procedure, an x-ray machine is used to take pictures of the inside of the body. The x-rays pass through various parts of the body to produce images of tissues, ...
Is radiation a risk for a patient?
Because the amount of radiation used in a normal x-ray procedure is small, there is a small risk for the patient. However, it is still important for patients to understand what to do if an x-ray procedure is suggested. Ask your health care professional how an x-ray will help.
Does ultrasound expose you to radiation?
Ultrasound does not use ionizing radiation, so it does not expose women of childbearing age to radiation in the pelvic area. This is particularly important in pregnancy. For more information, please see the Image Wisely external icon website. Risks that are considered small should not be taken if they’re unnecessary.
What are some examples of imaging tests?
Some other common examples of imaging tests include: CT or CAT (computed tomography) scans.
How long does an MRI last?
MRI procedures, which can lasts from 30-60 minutes, use magnetic fields and radio waves to produce images of specific parts of the body. MRI scans are often performed along with other medical imaging procedures to provide a more detailed view of the area of the body that is being examined.
Do you need an MRI before physical therapy?
The Bottom Line. In general, you do not need advanced diagnostic tests like an X-ray or MRI before starting physical therapy. 4 If your pain or functional limitation came on gradually, or for no apparent reason, then your condition most likely does not warrant these tests right away, and it is safe to participate in physical therapy.
What is a clinical examination?
The Clinical Examination. Your physical therapist is trained to perform a thorough clinical examination when you first come in for therapy. He or she will measure your range of motion and strength, analyze your gait and posture, and get an assessment of your functional mobility. The clinical examination will also reveal any areas ...
Is a CT scan dangerous?
An X-ray or CT scan does expose you to radiation, which may be harmful in large doses. 2 An MRI carries with it very little risk, but if you have any metallic implants or fragments in your body, you may not be able to have an MRI, ...
What is the purpose of X-rays?
An X-ray is a quick, painless test that produces images of the structures inside your body — particularly your bones . X-ray beams pass through your body, and they are absorbed in different amounts depending on the density of the material they pass through. Dense materials, such as bone and metal, show up as white on X-rays.
Why are X-rays not safe?
Some people worry that X-rays aren't safe because radiation exposure can cause cell mutations that may lead to cancer. The amount of radiation you're exposed to during an X-ray depends on the tissue or organ being examined. Sensitivity to the radiation depends on your age, with children being more sensitive than adults.
What is an X-ray?
Overview. An X-ray is a quick, painless test that produces images of the structures inside your body — particularly your bones. X-ray beams pass through your body, and they are absorbed in different amounts depending on the density of the material they pass through. Dense materials, such as bone and metal, show up as white on X-rays.
Where is the X-ray tube?
The X-ray tube is focused on the abdomen. X-rays will pass through the body and produce an image on the specialized plate below. Different types of X-rays require different preparations. Ask your doctor or nurse to provide you with specific instructions.
What is chest xray?
Chest X-ray. A chest X-ray helps detect problems with your heart and lungs. The chest X-ray on the left is normal. The image on the right shows a mass in the right lung. X-ray of swallowed jack. Open pop-up dialog box. Close. X-ray of swallowed jack. X-ray of swallowed jack.
What is the color of the air in your lungs?
Dense materials, such as bone and metal, show up as white on X-rays. The air in your lungs shows up as black. Fat and muscle appear as shades of gray.
Is chest X-ray normal?
A chest X-ray helps detect problems with your heart and lungs. The chest X-ray on the left is normal. The image on the right shows a mass in the right lung.
Do you have to prepare for an X-ray?
Most routine X-rays do not require patients to prepare for the exam. However, special studies, such as contrast radiography or barium enemas, require patients to follow special instructions from the doctor. Patients might be asked to make dietary changes leading up to the time of the exam.
What is diagnostic x-ray?
Diagnostic X-ray, or radiography, is a special method for taking pictures of areas inside the body. A machine focuses a small amount of radiation on the area of the body to be examined. The X-rays pass through the body, creating an image on film or a computer display. The equipment, staff, and steps involved are different for each type ...
What are the symptoms of contrast media?
Some people have an allergic reaction to contrast media, which is used in certain diagnostic X-rays. Symptoms of an allergic reaction include: 1 Hives 2 Itchiness 3 Nausea 4 Shortness of breath 5 Weakness
What is contrast medium used for?
Angiography: Uses an injection of contrast medium to image blood vessels in a specific part of the body. Angiograms show the function of blood vessels in the heart, lungs, kidneys, brain, arms, and legs. Arthrogram: Uses an injection of contrast medium into a joint.
What is an arthrogram?
Arthrogram: Uses an injection of contrast medium into a joint. This procedure shows injury or disease in joints, arms, and legs. Upper GI (gastrointestinal) series: Uses a barium solution as a contrast medium and helps evaluate the function of the esophagus, stomach, and upper small intestine.
What is a radiologist X-ray?
At the appointment, patients will meet X-ray professionals who are specially trained to help with the procedure: A radiologist is a doctor who specializes in imaging the human body.
What is the purpose of a machine?
A machine focuses a small amount of radiation on the area of the body to be examined. The X-rays pass through the body, creating an image on film or a computer display. The equipment, staff, and steps involved are different for each type of diagnostic X-ray procedure.
What is X-rays used for?
X-rays are a type of imaging technique that we use to diagnose injuries or issues in the bones so that your doctor can plan a course of treatment. At OrthoCarolina Sports Medicine, where I work, we see mostly shoulders and knees, but you can have X-rays anywhere on the body.
What is the difference between MRI and X-ray?
These are two completely different studies. MRI is magnetic resonance imaging and will show soft tissue, tendon, and ligament damage. X-rays show more bone and joint space and issues with abnormalities in the bone. The two in combination helps the doctor come up with the best prognosis and diagnosis.
Is orthopedics a specialty?
Orthopedics is a specialty office so there are some different views we may need to see from the original X-ray you had taken elsewhere (however, do bring your other X-ray to your appointment, or call the office to have it sent to us).
What does MRI show?
MRI is magnetic resonance imaging and will show soft tissue, tendon, and ligament damage. X-rays show more bone and joint space and issues with abnormalities in the bone. The two in combination helps the doctor come up with the best prognosis and diagnosis.
What is the lead shield?
There is a lead shield for the lap and abdomen area, and the lead actually helps to block the radiation. It helps protect your most sensitive and reproductive organs from the X-ray. These organs are not as protected as organs like the heart and lungs are by the ribs.
Three reasons an X-ray can be important
Xrays are important for at least three reasons. First, there may be findings on the x-rays that may make more advanced study such as an MRI unnecessary. One of the best examples I can give of that is obtaining knee xrays when evaluating for a possible tear of the ACL.
Ask your doctor if an xray is necessary
If there’s ever a question of whether or not an xray is necessary, you should always ask either the office staff or the doctor himself to determine what studies are necessary and important.
Is radiation harmful to the eye?
In a few interventional procedures, where there may be high radiation doses to the lens of the eye or to the skin, there are risks, respectively, for developing cataracts and of injury akin to a skin burn.
What are the risks of ionizing radiation?
What are the risks from ionizing radiation associated with medical x-rays? There are two different types of risks, stochastic and deterministic. Stochastic effects are those in which the probability (not the severity) of the effect depends on dose. Examples of stochastic effects include cancer and genetic effects.
What are the different types of radiation?
While every x-ray examination will subject your patient to some amount of radiation, the ones mostly likely to subject your patient to a high dose of radiation are: 1 computed tomography (CT), especially of the abdomen and pelvis with and without contrast; 2 interventional fluoroscopic examinations, especially complicated cardiac and neurological procedures; and 3 some nuclear medicine examinations, such as stress cardiac studies.
What are the two types of risks?
There are two different types of risks, stochastic and deterministic. Sto chastic effects are those in which the probability (not the severity) of the effect depends on dose. Examples of stochastic effects include cancer and genetic effects. The time between radiation exposure and the clinical presentation of these effects generally is measured in ...
What are some examples of deterministic effects?
Examples of deterministic effects include hair loss, skin burns, cataracts, diminished fertility, ...
What is CT in medical terms?
computed tomography (CT), especially of the abdomen and pelvis with and without contrast; interventional fluoroscopic examinations, especially complicated cardiac and neurological procedures; and. some nuclear medicine examinations, such as stress cardiac studies. In addition, patients who undergo repeated examinations are at increased risk ...
How does the FDA protect the public?
FDA works to protect the public from unnecessary radiation exposure by establishing performance standards for radiation-emitting products and monitoring the safety of radiation-emitting products currently in use . For example, FDA regulations require that all fluoroscopy equipment built after June 10, 2006, contain a number ...

What Diagnostic Tests Show
- X-rays and MRIs are tools that can give your healthcare provider a pretty good idea of the current state of tissues in your body. Do you have a broken bone? Is there a tumor present that needs immediate attention? Diagnostic studies can help rule in, or rule out, sinister lesions that need prompt fixing. Diagnostic studies never tell your healthcare provider or physical therapist exactl…
The Clinical Examination
- Your physical therapist is trained to perform a thorough clinical examination when you first come in for therapy. He or she will measure your range of motion and strength, analyze your gait and posture, and get an assessment of your functional mobility. The clinical examination will also reveal any areas of concern to your physical therapist that may signal the need for more advanc…
Can Diagnostic Studies Be Harmful?
- While most diagnostic tests carry very little risk, you should be aware of the possible side effects of these tests. An X-ray or CT scan does expose you to radiation, which may be harmful in large doses.2 An MRI carries with it very little risk, but if you have any metallic implants or fragments in your body, you may not be able to have an MRI, as the magnet in the MRI may move the metallic …
The Bottom Line
- In general, you do not need advanced diagnostic tests like an X-ray or MRI before starting physical therapy.4If your pain or functional limitation came on gradually, or for no apparent reason, then your condition most likely does not warrant these tests right away, and it is safe to participate in physical therapy. If your symptoms persist or worse...
Overview
Risks
- Radiation exposure
Some people worry that X-rays aren't safe because radiation exposure can cause cell mutations that may lead to cancer. The amount of radiation you're exposed to during an X-ray depends on the tissue or organ being examined. Sensitivity to the radiation depends on your age, with childre… - Contrast medium
In some people, the injection of a contrast medium can cause side effects such as: 1. A feeling of warmth or flushing 2. A metallic taste 3. Lightheadedness 4. Nausea 5. Itching 6. Hives Rarely, severe reactions to a contract medium occur, including: 1. Severe low blood pressure 2. Anaphyl…
How You Prepare
- Different types of X-rays require different preparations. Ask your doctor or nurse to provide you with specific instructions.
What You Can Expect
- During the X-ray
X-rays are performed at doctors' offices, dentists' offices, emergency rooms and hospitals — wherever an X-ray machine is available. The machine produces a safe level of radiation that passes through your body and records an image on a specialized plate. You can't feel an X-ray. … - Your child's X-ray
If a young child is having an X-ray, restraints or other techniques may be used to keep him or her still. These won't harm your child and will prevent the need for a repeat procedure, which may be necessary if the child moves during the X-ray exposure. You may be allowed to remain with your …
Results
- X-rays are saved digitally on computers, which can be viewed on-screen within minutes. A radiologist typically views and interprets the results and sends a report to your doctor, who then explains the results to you. In an emergency, your X-ray results can be made available to your doctor in minutes.