Radiographic positioning chapter 1.Final Test
2026\2027.
body habitus
build, physique and general shape of human body
4 general body styles
1. sthenic
2. hypothetic
3. hyperstenic
4. asthenic
sthenic
-about 50% of population
-considered average
hyposthenic
-about 35% of population
-thin, more slender then sthenic
hypersthenic
-about 5% of population
-large and broad frame compared to sthenic
asthenic
-about 10% of population
-even more slender then sthenic
impact of body habitus on radiographic positioning?
-image receptor placement needs to be considered
-lengthwise (portrait) or
crosswise (landscape)
radiographic positioning
study of patient positioning performed for radiographic demonstration or visualization of
specific body parts on image receptors (IR)
radiograph
, Radiographic positioning chapter 1.Final Test
2026\2027.
an image of a patients anatomic parts produced by the action of X-rays on an image
receptor
radiography
the process and procedures of producing a radiograph
central ray (CR)
refers to the centermost portion of the X-ray beam emitted from the tube; the portion of the
X-ray beam that has the least divergence
image receptor (IR)
device that receives the energy of the X-ray bean that exits the patient and forms the image
of the body part
4 types of image receptors
1. cassette with film
2. image plate (IP)
3. solid-state detectors
4. fluoroscopic image receptor
a radiographic exam includes the following 5 general functions:
1. positioning the body part and alignment with the image receptor (IR) and central ray (CR)
2..application of radiation protection measures and devices
3. selection of exposure factors on the control panel
4. patient instructions related to respiration and inhalation of the exposure
5. processing of the image receptor (IR)
anatomic position
patient stands facing you, arms at the side, with the palms of the hands forward
4 body planes
1. sagittal
2. coronal
3. horizontal (axial)
4. oblique
sagittal plane
divides body into left and right
2026\2027.
body habitus
build, physique and general shape of human body
4 general body styles
1. sthenic
2. hypothetic
3. hyperstenic
4. asthenic
sthenic
-about 50% of population
-considered average
hyposthenic
-about 35% of population
-thin, more slender then sthenic
hypersthenic
-about 5% of population
-large and broad frame compared to sthenic
asthenic
-about 10% of population
-even more slender then sthenic
impact of body habitus on radiographic positioning?
-image receptor placement needs to be considered
-lengthwise (portrait) or
crosswise (landscape)
radiographic positioning
study of patient positioning performed for radiographic demonstration or visualization of
specific body parts on image receptors (IR)
radiograph
, Radiographic positioning chapter 1.Final Test
2026\2027.
an image of a patients anatomic parts produced by the action of X-rays on an image
receptor
radiography
the process and procedures of producing a radiograph
central ray (CR)
refers to the centermost portion of the X-ray beam emitted from the tube; the portion of the
X-ray beam that has the least divergence
image receptor (IR)
device that receives the energy of the X-ray bean that exits the patient and forms the image
of the body part
4 types of image receptors
1. cassette with film
2. image plate (IP)
3. solid-state detectors
4. fluoroscopic image receptor
a radiographic exam includes the following 5 general functions:
1. positioning the body part and alignment with the image receptor (IR) and central ray (CR)
2..application of radiation protection measures and devices
3. selection of exposure factors on the control panel
4. patient instructions related to respiration and inhalation of the exposure
5. processing of the image receptor (IR)
anatomic position
patient stands facing you, arms at the side, with the palms of the hands forward
4 body planes
1. sagittal
2. coronal
3. horizontal (axial)
4. oblique
sagittal plane
divides body into left and right
