Interventional Radiology And Isotypes Flashcards
Subspecialty that provides minimal invasive techniques which help imaging modalities to diagnose or treat a condition.
Interventional Radiology
Enumerate advantages of interventional radiology
- Minimal invasive (80% of skin incisions less than 5cm)
- Early recovery (80% go back home in the same day)
- Local anaesthesia (90%)
Enumerate indications of international radiology.
(REST BAPA)
- Radio-frequency ablation “تفتيت”
- Embolization “توقف النزيف”
- Stent placement “تركب الدعامة”
- Thrombo-lysis “تفتيت الجلطة”
- Balloon angioplasty
- Athero-ectomy “في حالات تصلب الشرايين”
- Percutaneous ×3 ( biopsy, biliary drainage, nephrostomy)
- Abscess drainage
- The radiologic examination of vessels after induction of a contrast medium is the definition of:
- What is contrast medium?
- Angiography
- مادة بتظهر في الأشعة radio obaque
Basic principle of Angiography is
Arterial access by Seldinger Technique
- Define Seldinger Technique
- Mention the most commonly used artery.
- A Percutaneous PC technique for Arterial and venous access.
- Femoral Artery Is the most commonly used artery.
Seldinger Technique equipments are: 4
- Seldinger needle
- Guide wires
- Catheters
- Contrast media صبغة
Seldinger needle size, and usage are
- Size: 18 g (gauge)
- Usage: single use (disposable)
Most commonly used isotype in diagnostic purposes is
Technetium 99mTc
Technetium 99 with MDP used in
Bone
Technetium 99 with RBCs in
Blood
Technetium 99 with Sulpher-Colloid in
Liver and Spleen
What we use in thyroid scan and imaging?
- Thyroid SCAN: Radioactive Iodine
- Thyroid imaging: Pertechnetate
Used in Parathyroid galnd and heart localisation:
MIBI
Used in Adreno-Cortical imaging like:
- Cushing disease
- Cortisol producing adenoma
- Cons syndrome (1ry aldosteronism)
Idio-cholesterol 131I labeled 6-iodo-methyl 19-norcholesterol
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