| rdfs:comment
| - Computed tomography (CT) scanning (also called computerized axial tomography (CAT)) scanning, is an imaging procedure that uses x-rays to show cross-sectional images of the object begin scanned.
- CT scans may or may not require the use of contrast media. It is the job of the x-ray technologist to inform the patient about the procedure and answering any questions. If the procedure requires contrast media the patient will read, answer several question, and sign a consent form. This form is then used by the technologist as guide to help him/her determine if the patient is able to receive contrast media for the procedure. There are several possibilities that may prevent a patient from having contrast media for a procedure and it is important for the technologist to known these and bring them to the attention of the physician if they are present. The most important indicator that contrast will not be used is any type of allergy to iodine (contrast contains iodine). The technologist will
- "Computed tomography (CT), also known as Computed Axial Tomography (CAT), is a painless, sophisticated x-ray procedure. Multiple images are taken during a CT or CAT scan, and a computer compiles them into complete, cross-sectional pictures ("slices") of soft tissue, bone, and blood vessels." CT scans can be performed on every region of the body for a variety of reasons (e.g., diagnostic, treatment planning, interventional, or screening). The “tome” in tomography is the Greek word for “slice.” At the core of the scanner is a computer that not only controls the radiation source, the rotation of the x-ray tube and detector, and the movement of the table, but also generates anatomical slices, or tomograms, from the measured projections. The mathematical technique that allows an image of the he
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| abstract
| - CT scans may or may not require the use of contrast media. It is the job of the x-ray technologist to inform the patient about the procedure and answering any questions. If the procedure requires contrast media the patient will read, answer several question, and sign a consent form. This form is then used by the technologist as guide to help him/her determine if the patient is able to receive contrast media for the procedure. There are several possibilities that may prevent a patient from having contrast media for a procedure and it is important for the technologist to known these and bring them to the attention of the physician if they are present. The most important indicator that contrast will not be used is any type of allergy to iodine (contrast contains iodine). The technologist will also interview the patient to help alleviate fears or anxiety by answering questions fully and honestly (Fig-2). CT is considered a specialty practice in radiograhic imaging therefore, it is required that technologists take several courses to become a certified CT technologist. CT also requires that your insert needles into patients veins the adminstration of contrast media. In some programs across the country CT is offered as a specialty program, in which you begin training as a CT technologist throughout an entire semester. This course helpful towards getting a job in CT after graduation. References: Bontrager, K.L. & Lampignano, J.P. (2005). Radiographic Positioning and Related Anatomy. Elesvier Mosby, 6th Ed. Torres, L.S., Watson-Norcutt, T.L., & Dutton, A.G. (2003). Basic Medical Techniques and Patient Care in Imaging Technology. Lippincott Williams & Wilkins, 6th Ed.
- Computed tomography (CT) scanning (also called computerized axial tomography (CAT)) scanning, is an imaging procedure that uses x-rays to show cross-sectional images of the object begin scanned.
- "Computed tomography (CT), also known as Computed Axial Tomography (CAT), is a painless, sophisticated x-ray procedure. Multiple images are taken during a CT or CAT scan, and a computer compiles them into complete, cross-sectional pictures ("slices") of soft tissue, bone, and blood vessels." CT scans can be performed on every region of the body for a variety of reasons (e.g., diagnostic, treatment planning, interventional, or screening). The “tome” in tomography is the Greek word for “slice.” At the core of the scanner is a computer that not only controls the radiation source, the rotation of the x-ray tube and detector, and the movement of the table, but also generates anatomical slices, or tomograms, from the measured projections. The mathematical technique that allows an image of the head to be recovered from its projections is referred to as the back projection algorithm. Because the patient is positioned horizontally on the table, the back projection algorithm yields slices that are trans-axial, which means the slices are oriented at right angles to the long axis of the body. Lastly, a contrast media, or “dyes” are used both in brain CT and MRI to provide another mechanism for modulating image intensity beyond what is possible using intrinsic tissue contrast. The device operates on 480VAC, 3-phase delta-wye, 100Amp power circuits.
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