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renal vasculature, etc

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Liver Allografts – 6 Post-op complications:   "HI-HAT PIT BOAR" 1.-Hepatic Infarction 2.-Hepatic Artery Thrombosis 3.-Portal vein or IVC Thrombus 4.-Biliary Obstruction 5.-Abscess 6.-Rejection  
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4 types of peritransplant Fluid Collections:   HULA - 1.) Hematoma 2.) Urinoma 3.) Lymphocele 4.) Abscess  
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4 Vascular Complications of Renal Transplant :   1.) Renal Artery Stenosis 2.) Renal Artery Thrombosis 3.) Pseudoaneurysm & AV Fistula 4.) Peritransplant Fluid Collections  
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Pulsatility index: PI=   (A-B)/Mean vel where A= peak vel amd B= min vel  
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Risistive Index: RI=   (A-B)/A where A= peak vel amd B= min vel  
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Rejection is diagnosed wen PI is:   >1.8  
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Rejection is diagnosed wen RI is:   >.7  
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"100% positive pedictive value for rejection" of a kidney transplant:   An RI >.9  
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Sonographic diagnosis of renal vein thrombosis relies on:   DIRECT VISUALIZATION of the renal vein  
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Most common cause of secondary HTN:   Renovascular Hypertension (RVH)  
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Second most common cause of renovascular HTN:   Fibromuscular dysplasia  
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Most common cause of correctable HTN :   Renal Artery Stenosis (RAS)  
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Renal to Aortic Ratio (RAR) - 0-59% stenosis:   RAR<3.5  
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Renal to Aortic Ratio (RAR) - 60-99% stenosis:   RAR>3.5  
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Renal arterial flow path (7 items):   Renal artery → renal hilum → segmental arteries → interlobar arteries → arcuate arteries → interlobular arteries →parenchyma  
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Renal venous flow path(7 items):   parenchyma → Interlobular vein → arcuate vein→ interlobar vein → segmental vein → renal vein→ IVC  
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Fasting Celiac artery PSV, normal/ischemic:   <122cm/sec / 200cm/sec  
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Fasting Celiac artery EDV, normal/ischemic:   32-35cm/sec / 55cm/sec  
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Fasting SMA PSV, normal/ischemic:   <156 cm/sec / 275cm/sec  
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SMA postprandial PSV increase:   ↑ 40%  
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SMA postprandial avg. increase:   ↑164%  
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A stenosis of 70% or greater results in a fasting SMA PSV of:   275cm/sec  
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6 causes of Portal Vein Thrombosis:   1.) Cirrhosis 2.) Direct invasion or compression by neoplasm 3.) Post-op complications 4.) Pancreatitis 5.) Trauma 6.) Idiopathic  
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Flow toward the liver:   hepatopedal  
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Flow away from the liver:   hepatofugal  
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“T” or “Seagull sign” :   Celiac Axis  
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“banana peel” sign   Renal arteries - coronal view  
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Main portal vein formed by:   union of splenic vein and SMV  
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Celiac Axis gives rise to these 3 vessels:   1.) Left gastric artery 2.) Hepatic artery 3.) Splenic artery  
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3 cerebrovascular collateral patterns:   1. Crossover 2. External to internal 3. Posterior to anterior  
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6 Branches of the Aorta   1. Celiac axis 2. Superior mesenteric artery (SMA) 3. Renal arteries 4. Inferior mesenteric artery 5. Common iliac arteries 6. External & Internal iliac arteries  
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