Ray in Medical Dictionary

Abdominal mass

... DOCTOR TELL IF MY CHILD HAS WILMS' TUMOR ? After examining the child and feeling the abdominal mass , the doctor will order blood tests and an X ray of the kidney s. Other tests, including ultrasound , may also be needed. urinary incontinence (unintended leakage of urine ) frequent, ...

Achalasia

... (or another tubular valve) to open, resulting in obstruction, either partial or complete. Contrast agentA substance that produces shadows on an x ray so that hollow structures can be more easily seen. Achalasia Aches - Leg ( Leg Pain ) Aches and Pains in Bones ( Bone Pain or Tenderness ) ...

Aging

... . Studies show over 90% of breast cancer s can be demonstrated by mammography . MAGNETIC RESONANCE IM AGING ( MRI ): A noninvasive , non-X ray diagnostic technique-also called nuclear magnetic resonance or NMR-based on the magnetic fields of hydrogen atoms in the body. One can test the ...

Bone scan

... Bone Scan Bone Shortening (Leg Lengthening/Shortening) Bone Strength and Calcium ( Calcium and Bones) ... Other possible tests include an X ray (which may not show bone changes until the infection has been present over a week) and a bone scan , ... Quadramet (samarium-153 [153Sm] ...

Chest X

... test that involves exposing the chest briefly to radiation to produce an image of the chest and the internal organ s of the chest. The chest x ray may be normal in the early stages, but, in a short time, fluid will be seen where it does not belong. The two lungs are about equally affected. A ...

Esophageal manometry

... Esophageal manometry . In this test, a thin tube is passed into the esophagus to measure the pressure exerted by the esophageal sphincter . X ray of the esophagus . Barium may be swallowed to act as a contrast agent. esophageal manometry Under sedation, a small tube containing a ...

Epiglottis

... epiglottitis ( inflammation of the epiglottis -- the flap that closes the windpipe when you swallow) ... In the hospital , an emergency X ray of the neck will be done to visualize the characteristic swelling of the epiglottis . Oxygen may be delivered via an oxygen mask. The ...

Gamma

... ... gamma knife Radiation therapy in which high-energy rays are aimed at a tumor from many angles in a single treatment session. gamma ray ... Gamma gard S/D ( Immune Globulin Intravenous (Human) ) ( Systemic ) Gamma gard S/D 0.5 g ( Immune Globulin Intravenous (Human) ) ( ...

Herniated Disk

... of back pain diagnosis ; yet only a few back conditions show up on x rays! If the pain is caused by muscle strain or a herniated disk , an x ray will not reveal anything because muscle s, disks, ... Pressure on the spinal nerve s, like that from a herniated disk . Carpal tunnel ...

Invasive

... a waste of time. They have tried them and ended up having a hysterectomy anyway. MAGNETIC RESONANCE IM AGING ( MRI ): A non invasive , non-X ray diagnostic technique-also called nuclear magnetic resonance or NMR-based on the magnetic fields of hydrogen atoms in the body. Midwife ry views ...

Lymphangiogram

... in the lymph atic vessels. Among them are blood and bone marrow studies to determine which types of white blood cells are affected, an X ray of the affected lymph node s and channels (called a lymphangiogram ), and a biopsy of an enlarged lymph node . ...

Mammogram

... A specialised x-ray that shows up breast tissue and can detect breast cancer at a very early stage. Mastectomy ... A mammogram (an x ray of the breast ) or an ultrasound scan (using high frequency sound waves) might be used to determine if there are any tumor s or cysts present ...

Noninvasive

... in the early 1960s to permit orthopaedic surgery in a relatively noninvasive way. MAGNETIC RESONANCE IM AGING ( MRI ): A noninvasive , non-X ray diagnostic technique-also called nuclear magnetic resonance or NMR-based on the magnetic fields of hydrogen atoms in the body. Ductal carcinoma ...

Radiation therapy

... cancer cells. Radiation therapy in which high-energy rays are aimed at a tumor from many angles in a single treatment session. gamma ray A type of high-energy radiation that is different from an x-ray . Radiation therapy Bladder dysfunction Bladder cancer Common causes of ...

Refraction

... for the Test? If you wear contact lenses, ask the doctor how long they should be left out before the test. refraction 1. The bending of a ray or wave of light from one medium to a medium of a different density. 2. The amount of error in the eye and the correction of that error with ...