Interventional Radiography Flashcards

1
Q

State the differences between radiology department fluoroscopy units and interventional / cardiology fluoroscopy units

A
  • Intervention / Cardiology Fluoroscopy Units are floor or ceiling mounted
  • They are highly modern and motorised
  • They are isocentric meaning they can move around a fixed central point and prevents having to move the patient
  • Built in dose monitoring
  • Has several monitors to allow for HD projection from multiple angles to be viewed
  • Radiolucent specialised patient table for minimal x-ray absorption
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2
Q

What is Interventional Radiology

A
  • an area which uses x-ray guided techniques to repair, seal-off or unblock anatomy
  • Utilises the body’s vascular system to access multiple areas, from head to toe
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3
Q

What is the Catheterisation Laboratory

A
  • An area which uses x-ray guided techniques however, it focuses on the heart and specifically its vessels
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4
Q

What is the role of Interventional Radiology

A
  • Enables targeted treatment to be given instead of open surgery which in turn allows patients to either attend as an outpatient or have a one-night stay to recover
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5
Q

What is the major advantage of Interventional Radiology

A
  • Minimally invasive procedures
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6
Q

What are the advantages of Interventional Radiology

A
  • Live imaging allows intra-procedural targeting of anatomy and device delivery
  • Much less invasive and risky surgery
  • Lower costs to NHS
  • Quicker, Local Anaesthetic, home!
  • May not require any follow up
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7
Q

What are the disadvantages of Interventional Radiology

A
  • Radiation Dose
  • Risk of Infection
  • Risk of PE and Stroke
  • Haemorrhage at site of intervention
  • Rupture or Dissection of Blood Vessels
  • Pneumothorax
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8
Q

What are examples of Interventional radiology procedures

A
  • Percutaneous Coronary Intervention (PCI)
  • Valve Replacement
  • Cardiac Ablation
  • Endovascular Procedures
  • Stenting
  • Biopsy
  • Angioplasty
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9
Q

Where is the main access point for Vascular access

A
  • Femoral Artery
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10
Q

What are other access points for vascular access

A
  • Radial then Brachial Artery
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11
Q

Why would Aspirin be used in a Cardiac Procedure?

A
  • Given to the patient to prevent any further blood clots from forming
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12
Q

Why would GTN (Glyceryl Trinitrate) be used?

A
  • Given as a vasodilator to relax the arteries and allow greater blood flow
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13
Q

Name imaging positions used during cardiac procedures

A
  • PA Craniocaudal
  • PA Caudocranial
  • Right Anterior Oblique
  • Left Anterior Oblique
  • Lateral
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14
Q

Who is in the Cath Lab?

A
  • Consultant Interventional Cardiologist
  • Registrar On-Call
  • Radiographer
  • Cardiac Physiologist
  • Staff Nurse On-Call
  • Students
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15
Q

Define Absorbed Dose

A
  • Defined as the amount of radiation required to deposit 1 joule (J) of energy in 1 kilogram of any kind of matter
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16
Q

Define Effective Dose

A
  • The sum of the equivalent doses in all irradiated organs multiplied by the correct weighting factor
17
Q

What are the 3 elements of dose reduction

A
  • Time: minimise exposure duration
  • Distance: remember inverse square law
  • Shielding: Lead PPE & physical rolling lead
18
Q
A