Angiography and Arteriography SPRING 2009 FINAL3-10-09.
-
Upload
roxanne-walker -
Category
Documents
-
view
217 -
download
0
Transcript of Angiography and Arteriography SPRING 2009 FINAL3-10-09.
Angiography and Angiography and ArteriographyArteriography
SPRING 2009 SPRING 2009
FINALFINAL
3-10-093-10-09
AngiographyAngiography
Is the general term that Is the general term that describes the radiologic describes the radiologic examination of vascular examination of vascular
structures within the body structures within the body after the introduction of an after the introduction of an
iodinated contrast medium or iodinated contrast medium or gasgas
Angiography TeamAngiography Team
RadiologistRadiologist
CIT (Radiologic Technologist)CIT (Radiologic Technologist)– Sometimes more than oneSometimes more than one
Other specialists (if needed)Other specialists (if needed)
Nurse Nurse
Anesthesiologist (if needed)Anesthesiologist (if needed)
IndicationsIndications
Verify the presence of Verify the presence of tumorstumors– Blood supply to tumorsBlood supply to tumors
Internal bleedingInternal bleeding– Possible anemiaPossible anemia
StenosisStenosis
– Can be caused form Can be caused form atherosclerosisatherosclerosis
OcclusionsOcclusions– ClotsClots– ThrombusThrombus– EmbolusEmbolus
AneurysmsAneurysms
Heart diseaseHeart disease
ContraindicationsContraindications
Previous severe reaction to contrast Previous severe reaction to contrast
Impaired renal functionImpaired renal function
Impaired blood clotting factorsImpaired blood clotting factors
Inability to undergo surgical Inability to undergo surgical procedureprocedure
Contrast MediaContrast Media
Iodinated contrast media is usedIodinated contrast media is used– Can produce nausea & an Can produce nausea & an
uncomfortable burning sensationuncomfortable burning sensation
– Allergic reactionsAllergic reactions Severe: anaphylactic shockSevere: anaphylactic shock
– Shock, rapid shallow breathing, high pulse rate & Shock, rapid shallow breathing, high pulse rate & ALOCALOC
Mild: Hives or slight difficulty breathingMild: Hives or slight difficulty breathing
NeedlesNeedles
Vascular access Vascular access needlesneedles
Size based on Size based on external diameter of external diameter of needleneedle
Allows for Allows for appropriate appropriate Guidewires Guidewires matchingmatching– So internal diameter So internal diameter
must also be knownmust also be known
GuidewiresGuidewires Used as a platform Used as a platform
over which a catheter over which a catheter is to be advancedis to be advanced
Once positioned Once positioned guidewire is fixed and guidewire is fixed and catheter is advanced catheter is advanced until it meets the tip until it meets the tip of the guidwireof the guidwire
Mostly constructed on Mostly constructed on stainless steel & stainless steel & coated with Tefloncoated with Teflon
Introducer SheathsIntroducer Sheaths
Short catheters Short catheters used when multiple used when multiple catheters will be catheters will be usedused
Placed in lieu of a Placed in lieu of a cathetercatheter
DSA DSA
A subtraction mask is A subtraction mask is taken before contrast taken before contrast injectedinjected
Each of digitized Each of digitized image is from the image is from the maskmask
Images acquired Images acquired formform– 1 image every 2-3 sec1 image every 2-3 sec– Up to 30 images per Up to 30 images per
secsec
Pre-ProcedurePre-Procedure PT’s are usually limited to a liquid diet and PT’s are usually limited to a liquid diet and
routine medicationsroutine medications
Adequate hydrationAdequate hydration
An IV line placedAn IV line placed– Sedative may be givenSedative may be given
History taken and vitals takenHistory taken and vitals taken
Informed consentInformed consent
Preparing the Patient RoomPreparing the Patient Room
Must be extensively cleanedMust be extensively cleaned
Equipment checkedEquipment checked
Room thoroughly stockedRoom thoroughly stocked
Extra supplies as neededExtra supplies as needed
Radiation ProtectionRadiation Protection
PT is protected by no less than 2.5 PT is protected by no less than 2.5 mm of Aluminummm of Aluminum
Beam restrictionBeam restriction Avoidance of repeat exposureAvoidance of repeat exposure Cardinal rulesCardinal rules
– Time Time – DistanceDistance– ShieldingShielding
Post ProcedurePost Procedure
PTs usually can resume normal PTs usually can resume normal activity after 24 hoursactivity after 24 hours
Most often can go home after 24 hoursMost often can go home after 24 hours– Because internal bleeding can be life Because internal bleeding can be life
threateningthreatening Vitals are monitoredVitals are monitored Puncture site is monitored for bleedingPuncture site is monitored for bleeding
Stent PlacementStent Placement
http://images.google.com/imgres?http://images.google.com/imgres?imgurl=http://www.nhlbi.nih.gov/health/dci/imgurl=http://www.nhlbi.nih.gov/health/dci/images/stent_restenosis.gif&imgrefurl=http://images/stent_restenosis.gif&imgrefurl=http://www.nhlbi.nih.gov/health/dci/Diseases/stents/www.nhlbi.nih.gov/health/dci/Diseases/stents/stents_all.html&usg=__xDlbsaX9JhuYbpVojLcz1stents_all.html&usg=__xDlbsaX9JhuYbpVojLcz19apr-9apr-I=&h=513&w=450&sz=59&hl=en&start=20&tI=&h=513&w=450&sz=59&hl=en&start=20&tbnid=vWwqaG-RNW7M-bnid=vWwqaG-RNW7M-M:&tbnh=131&tbnw=115&prev=/images%3FqM:&tbnh=131&tbnw=115&prev=/images%3Fq%3Dabdominal%2Bstents%26gbv%3D2%26hl%3Dabdominal%2Bstents%26gbv%3D2%26hl%3Den%3Den
DSA showing embolization DSA showing embolization before and after procedurebefore and after procedure