Mid Term Revision. Radiological Imaging and Processing 1 Dr Mohamed El Safwany, MD. RADIOLOGIST ROLE. Separate: Normal from Abnormal Characterize / Describe: Abnormality Determine: Extent (stage) of disease Suggest: Diagnosis / Differential
Dr Mohamed El Safwany, MD.
TOMOGRAPHIC IMAGES ARE
IN A SPECIFIC PLANE
X - RAY --- FOUR BASIC DENSITIES
Main function: Keep solution tanks full and assure proper solution concentration.
As film is introduced into processor, sensor initiates solution replenishment
Right & wrong way to feed in film
-Feed in along short edge
Dry processing – no chemistry
Less environmental impact
General Body Positions
Erect (stand or sit)
Lying down in any position
Specific Body Positions
The body part closest to the IR (oblique and lateral) or by the surface on which the patient is lying
The direction or path of the CR of the x-ray beam
AP or PA Oblique
Mediolateral or Lateromedial
Image Markers and Patient Identification
Patient ID and Date
Anatomic side marker
Additional markers or Identification
PA Chest (Normal/ ambulance patients) (Basic)
Lateral erect chest (Basic)
LAO, RAO chest (heart) (special)
Preliminary bowel preparation in nonacute patients is administered with a combination of laxatives, enemas, and controlled diet. Preparation is important if the patient will be undergoing contrast examination of the gastrointestinal tract or an IVP.
In all other cases, the decision regarding whether or not a patient undergoes preliminary bowel preparation is determined by the requesting physician. Bowel preparation should not be administered to patients suspected of having bowel obstruction, visceral perforations, or abdominal trauma, or to an acutely ill patient
produced in the PA position.
orbital rim and floors and superior orbital fissure.
For nasal bone fractures.
Head in true lateral (same position as for lateral skull as in Sim’s position) or erect, chin adjusted so that both IPL and IOML are 90 to couch top.
Film: HD 18x24 cm
CP: 1.25 cm inferior to naison
CR: 90 to film center
NB/ A long narrow cone should be used.