Anatomy
What is the lowest portion of the lung called?
Costophrenic angle
What patient position is when the patient is recumbent and head positioned at a lower level than the feet?
Trendelenburg
Where is the central ray for AP Neutral Shoulder?
CR perpendicular, to 3/4" (2 Cm) inferior to coracoid process
What two interactions occur in the x-ray tube? Specifically when the emission of electrons is shot from the cathode to the anode.
Bremsstrahlung and Characteristic
The X-ray was discovered by who?
Wilhelm Rontgen
What bones compose of the mortise ankle?
Tibia, Fibula, and Talus
Apex of the heart is formed by
Left ventricle
What angle is the CR for an Apical AP Axial Shoulder?
30 degrees caudad entering 1/2" above the coracoid process
What three interactions occur organically?
Coherent/Classical, Compton, and Photoelectric
When was X-ray discovered? Exact date, Ex: Nov. 8th, 1985
Nov. 8th, 1895
What is the hole at the head of the femur known as?
Fovea Capitis Femoris
What is the central ray for an AP Knee?
Bonus: What angle for thick thighs?
1/2" Distal to the apex of patella
Bonus Answer: 3-5 Degrees cephalad
What three things happen during attenuation?
Transmission, Absorption, and Scatter
The first C-arm was introduced what year?
1955
What two bone separates the frontal bone from articulating with the temporal bone?
Parietal and Sphenoid (Greater)
Which period of development is the fetus most radiosensitive?
First Trimester
What is the central ray for a unilateral frog-leg: Lateral Hip?
CR perpendicular to the midfemoral neck, 1-2 inch medial from the ASIS and 3-4 inches distal.
What equipment piece in the x-ray tube is composed electromagnets that induce turning of the rotor?
Stator
What year did Rontgen win the Nobel Prize in physics?
1901
What bone consist of the styloid process in the skull?
Temporal Bone
The principal function of x-ray beam filtration is to?
Central ray for an oblique T-Spine
Central Ray perpendicular to center of IR to T7, 3-4 inch below the jugular notch.
Attenuation depends on four things
Part thickness, Tissue density, Atomic Number, and Beam Energy
The photoelectric effect was discovered by who and when?
Heinrich Hertz in 1887