CFI ICT 102 Test 1
Card Set Information
CFI ICT 102 Test 1
Performed first cath in 1884. It was on a horse.
Cardiac Output = O2 consumptions/arterial - venous O2 pressure
Performed first cath on living person (himself) in 1921.
Developed percutaneous approach in 1953
Mason Sones (& associates)
Developed technique for CA angiorgraphy Brachial cutdown
Developed percutaneous femeral approach (selective angiography) in 1967
Swan and Ganz
Developed balloon tip flow guides cathether in 1970. Commonly used for right heart
Beam of a stream of particles w/short wave length and high speed
Elecitrical current; controls quantity
Kilovoltage Peak (KVP)
Controls quality of x-ray. Increase voltage Increase potential power
Absorbed of Xray absorbed by body
Biological dose amount w/out bilogical injury
1 REM = ? RAD
? REM = 1 RAD
How is Radiation Dose measure?
Grey; Amount of radiation absorbed by a substance (1 Grey = 100 RADS = 100 REM)
What is culmulative Dose?
Radiation absorbed during an entire procedure, used in dosimeter reports based on montly exposure
Image Noise (High dose decrease image);
Percutaneous Transluminal Coronary Angioplasty
Why do we use stents?
Stents solved problems relating to elastic recoil, dissection, and restenosis of the treated segment
Gianturco and Roubin: What did they do and when did they do it?
Developed balloon-expandable coil stent made out of stainless steel ire wrapped in a manner to form the shape of a clam shell. FDA approved in 1993
Palmaz and Schatz: What did they do and when?
Palmaz: developed balloon-expandable slotted tube stainless steel stent w/ rectangular slots that formed into diamond shaped windows upon expansion
Schatz: Made the stent safer by adding a 1mm central articulating bridge btwn 2 rigid 7mm segments
FDA approved in 1994
What are two types of Radiation?
Scattered and Direct
How are X-Rays generated?
Through the method of Bremsstrahlung which is the breaking of radiation.
What does A.L.A.R.A stand for?
As Low As Reasonably Achieveable
Describe the X-ray Generator
Encased in lead to avoid exposure, controls power of xray tube, heats cathode filament (flow of electrons),
Converts electrical energy to photons, Rotates at 10K RPM, Ma is controlled by filament
List Stonastic Effects
Irrepairable damage, includes cancer, takes years-decades to notice injury, leukemia after 2-5 years exposure
Skin burns, cataracts, depends on how many cells need to be killed before tissue loses viability