Can you look at an x-ray
Governor Hogan announced that health care institutions in Maryland can start performing elective surgical cases in guidance with the State Department of Health. Learn what Johns Hopkins is doing. X-rays use invisible electromagnetic energy beams to make images of internal tissues, bones, and organs on film. Standard X-rays are performed for many reasons. These include diagnosing tumors or bone injuries. X-rays are made by using external radiation to produce images of the body, its organs, and other internal structures for diagnostic purposes.SEE VIDEO BY TOPIC: X-Ray Searching - Sourcing
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X-rays are a form of electromagnetic radiation, similar to visible light. Unlike light, however, x-rays have higher energy and can pass through most objects, including the body. Medical x-rays are used to generate images of tissues and structures inside the body. One type of x-ray detector is photographic film, but there are many other types of detectors that are used to produce digital images. The x-ray images that result from this process are called radiographs.
To create a radiograph, a patient is positioned so that the part of the body being imaged is located between an x-ray source and an x-ray detector. When the machine is turned on, x-rays travel through the body and are absorbed in different amounts by different tissues, depending on the radiological density of the tissues they pass through.
For example, structures such as bone contain calcium, which has a higher atomic number than most tissues. Because of this property, bones readily absorb x-rays and, thus, produce high contrast on the x-ray detector. As a result, bony structures appear whiter than other tissues against the black background of a radiograph. Conversely, x-rays travel more easily through less radiologically dense tissues such as fat and muscle, as well as through air-filled cavities such as the lungs. These structures are displayed in shades of gray on a radiograph.
Listed below are examples of examinations and procedures that use x-ray technology to either diagnose or treat disease:. X-ray radiography: Detects bone fractures, certain tumors and other abnormal masses, pneumonia, some types of injuries, calcifications, foreign objects, dental problems, etc.
Mammography : A radiograph of the breast that is used for cancer detection and diagnosis. Tumors tend to appear as regular or irregular-shaped masses that are somewhat brighter than the background on the radiograph i. Mammograms can also detect tiny bits of calcium, called microcalcifications, which show up as very bright specks on a mammogram.
While usually benign, microcalcifications may occasionally indicate the presence of a specific type of cancer. CT computed tomography : Combines traditional x-ray technology with computer processing to generate a series of cross-sectional images of the body that can later be combined to form a three-dimensional x-ray image.
CT images are more detailed than plain radiographs and give doctors the ability to view structures within the body from many different angles. Fluoroscopy: Uses x-rays and and a fluorescent screen to obtain real-time images of movement within the body or to view diagnostic processes, such as following the path of an injected or swallowed contrast agent. For example, fluoroscopy is used to view the movement of the beating heart, and, with the aid of radiographic contrast agents, to view blood flow to the heart muscle as well as through blood vessels and organs.
This technology is also used with a radiographic contrast agent to guide an internally threaded catheter during cardiac angioplasty, which is a minimally invasive procedure for opening clogged arteries that supply blood to the heart. Radiation therapy in cancer treatment: X-rays and other types of high-energy radiation can be used to destroy cancerous tumors and cells by damaging their DNA.
The radiation dose used for treating cancer is much higher than the radiation dose used for diagnostic imaging. Therapeutic radiation can come from a machine outside of the body or from a radioactive material that is placed in the body, inside or near tumor cells, or injected into the blood stream. Click here for more information on radiation therapy for cancer. When used appropriately, the diagnostic benefits of x-ray scans significantly outweigh the risks. X-ray scans can diagnose possibly life-threatening conditions such as blocked blood vessels, bone cancer, and infections.
However, x-rays produce ionizing radiation—a form of radiation that has the potential to harm living tissue. This is a risk that increases with the number of exposures added up over the life of the individual. However, the risk of developing cancer from radiation exposure is generally small. In general, if imaging of the abdomen and pelvis is needed, doctors prefer to use exams that do not use radiation, such as MRI or ultrasound.
However, if neither of those can provide the answers needed, or there is an emergency or other time constraint, an x-ray may be an acceptable alternative imaging option. Children are more sensitive to ionizing radiation and have a longer life expectancy and, thus, a higher relative risk for developing cancer than adults.
Parents may want to ask the technologist or doctor if their machine settings have been adjusted for children. Click on the following links for information about risks for specific procedures:. CT computed tomography. For detailed examples of research advancements for specific imaging procedures, click on the links below:.
Science Education Science Topics X-rays. How do medical x-rays work? When are medical x-rays used? Are there risks? What are medical x-rays? How Do X-rays Work? Listed below are examples of examinations and procedures that use x-ray technology to either diagnose or treat disease: Diagnostic X-ray radiography: Detects bone fractures, certain tumors and other abnormal masses, pneumonia, some types of injuries, calcifications, foreign objects, dental problems, etc.
Therapeutic Radiation therapy in cancer treatment: X-rays and other types of high-energy radiation can be used to destroy cancerous tumors and cells by damaging their DNA.
Click on the following links for information about risks for specific procedures: Mammography CT computed tomography. For detailed examples of research advancements for specific imaging procedures, click on the links below: Mammography CT computed tomography.
X-Ray Exam: Abdomen
X-rays are a form of electromagnetic radiation, similar to visible light. Unlike light, however, x-rays have higher energy and can pass through most objects, including the body. Medical x-rays are used to generate images of tissues and structures inside the body. One type of x-ray detector is photographic film, but there are many other types of detectors that are used to produce digital images.
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. The air in your lungs shows up as black. Fat and muscle appear as shades of gray.
An abdominal X-ray is a safe and painless test that uses a small amount of radiation to make an image of a person's abdomen belly. During the examination, an X-ray machine sends a beam of radiation through the abdomen, and an image is recorded on special film or a computer. This image shows the stomach, liver, spleen, small and large intestines, and diaphragm. The X-ray image is black and white. Dense body parts that block the passage of the X-ray beam through the body, such as bones, appear white on the X-ray image. Softer body tissues, such as the skin and muscles, allow the X-ray beams to pass through them and appear darker. Gas in the stomach and intestines appears black. An X-ray technician takes the X-rays. One or two pictures of the abdomen are usually taken to get a view of the area from different angles.
Sure, Superman Has X-Ray Vision. But How Would It Actually Work?
There is a reason Superman is called "super". He has super-strength and super-speed. He flies, and he is mostly indestructible. He can shoot laser-like things from his eyes.
Back to Health A to Z. They can't be seen by the naked eye and you can't feel them. A detector on the other side of the body picks up the X-rays after they've passed through and turns them into an image.
5 Types Of X-Rays And How They Are Used
Most of us know what the basic purpose of an X-ray is. In reality, X-rays can be used to detect and monitor conditions ranging all the way from a minor bone chip to advanced stages of cancer. This radiation can pass through the skin instantly, but is absorbed in different ways once it gets inside the body and starts contacting other objects. Bones or other thick materials contain the most density, and they appear white and opaque in an X-ray.
X-rays are a type of radiation called electromagnetic waves. X-ray imaging creates pictures of the inside of your body. The images show the parts of your body in different shades of black and white. This is because different tissues absorb different amounts of radiation. Calcium in bones absorbs x-rays the most, so bones look white. Fat and other soft tissues absorb less and look gray.
Ask the doctor: Should I worry about x-rays?
This is an article from Curious Kids , a series for children. All questions are welcome — serious, weird or wacky! I would like to know please if making x-ray vision is possible? Thank you so much for your help. Hi Finn. Thanks for your question.
X-rays and other radiographic tests help doctors look for cancer in different parts of the body including bones, and organs like the stomach and kidneys. Contrast studies may require more preparation ahead of time and may cause some discomfort and side effects, depending on what kind you are having. For names of contrast studies, see Table 1. Radiographs, most often called x-rays, produce shadow-like images of bones and certain organs and tissues. X-rays are very good at finding bone problems.
Patient’s Guide to Looking at an X-ray
I always worry about cancer risks when I have -x-rays or airport screenings. Am I overreacting? We use a lot of x-rays in medicine and in other places like airports. Too much radiation exposure over time definitely can have adverse effects on health.
X-ray (Radiography) - Bone
Bone x-ray uses a very small dose of ionizing radiation to produce pictures of any bone in the body. It is commonly used to diagnose fractured bones or joint dislocation. Bone x-rays are the fastest and easiest way for your doctor to view and assess bone fractures, injuries and joint abnormalities.
Many people may need to have an X-ray or MRI done after an injury or illness. These techniques provide an accurate solution to giving a patient the correct diagnosis. They both are tools used to take images and see inside of the body. This give pictures to the doctor that allows them to look at tendons, muscles, and bones that they cannot normally see.