Medical imaging

Radiologist is a medical doctor (MD) or doctors of osteopathic medicine (DOs) who specialize in using medical imaging techniques that help diagnose and treat diseases and injuries. The medical imaging that they use would be x-rays, CTs,…

without knowing it; it might be fridge magnets, cabinet latches, speakers and other electronic devices. Magnets are used in many different fields such as in medicine, education, science, and just for fun. For example in medicine, magnetic resonance imaging (MRI) uses very strong magnets and radio waves to show doctors inside the human body. In science, magnets can help store information on computers; they are also used in compasses, televisions, stereos, speakers, and earphones. We also can…

Lasik surgery is the most common type of refractive surgery. The aimed result of the surgery is to refract light rays on the retina without damaging the surrounding cellular cells. Lasik surgery is a procedure that was developed to correct the vision problems of Nearsightedness, Long-sightedness and Astigmatism. Nearsightedness (myopia) is when you can see nearby objects clearly, but distant objects seem blurry. Long-sightedness (hyperopia) is when you can see distant objects clearly, but nearby…

Computed tomography (CT) scanning technology was discovered in 1972 and revolutionized the world of neuroimaging (Sadock, Sadock, & Ruiz, 2014). The CT scan was the first technique to allow the imaging of brain tissue in living patients (Sadock, Sadock, & Ruiz, 2014). During a CT scan, a patient lies on a flat surface, which incrementally moves through what is referred to as a gantry (Sadock, Sadock, & Ruiz, 2014). A gantry is a round shaped structure that contains a motorized x-ray source…

An MRI scanner or a magnetic resonance imaging is a common apparatus used within hospitals which uses a scanning technique to show detailed images of the inside of a human body. There are two ways which an MRI scanner takes images of the human body. The two ways are the use of a strong magnetic field and the use of radio waves. There are two ways which MRI scanners work and the first is by hydrogen atoms. How this links within the human body is by the main link of hydrogen protons which are…

Magnetic resonance imaging (MRI) is a non-invasive imaging tool that can provide increased contrast between soft tissues to visualize structure and function thereof for diagnostic purposes. MRI has high spatial and temporal resolution and is safer than other imaging modalities because it does not require ionizing radiation. Rather, MRI is based on the behavior, interaction, and alignment of water protons that are found in soft tissue when an external magnetic field is applied. The magnetic field…

Patients must first receive a referral from their doctor 2. Patients or doctor’s assistant contact the MRI scheduling department to get appointment 3. Receptionist at scheduling department writes the patient’s name and type of procedure on the daily schedule form (8 time slots, each for a one-hour increment) 4. Patients check in with the receptionist upon arrival and wait for the MR technologist to escort them to the MR machine in the magnet room 5. Patients are questioned about possible…

Magnetic resonance imaging, also known as an MRI scan, is a type of scan that uses magnetic fields and radio wave energy to create images of the organs and tissues, such as the brain. It is a scan that is used to detect things such as tumors, infections and injuries. It is often used after an x-ray or CT scan is done to gather more information. This paper will discuss MRI in depth such as how an MRI works, its use in society, the differences between MRI and other scans and the future for MRI.…

Mammograms, ultrasounds, x-rays, and MRIs have helped women with breast cancer since 1895 (x-ray) 1956 (ultrasound) 1977 (MRI), and 1992 (mammogram). They have all been very beneficial to women. Breast cancer is the most common type of cancer in women. About one of three cancers are diagnosed. Cancer is a group of diseases that cause cells in the body to change and grow out of control. Most cancers will form a lump or mass in the breast, which is called a tumor. It is named after a part of the…

1.1 Introduction to biomedical signals Biomedical Instrumentation is the branch of medical science where the medical instruments are to be studied. Biomedical instruments are used to record, analyze & process the biomedical signals. Biomedical signals are extracting the information from biological systems like brain, muscles or heart etc, under investigation. The extracting information may be so simple to note the pulse rate of a person from wrist or so complex like analyzing the information…