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Pulmonary Arterial Hypertension: The pressure in the pulmonary artery depends on *.Cardiac output -1.Pulmonary vascular re...
Pulmonary Arterial HypertensionConditions that cause significant pulmonary arterial *hypertension all increase the resista...
Pulmonary Arterial Hypertension: By CXR * There will be enlargement of the mean pulmonary artery + the hilar pulmonary art...
Pulmonary Arterial HypertensionThe cause of pulmonary arterial hypertension may be *visible on the CXR as cor pulmonale & ...
Pulmonary Venous HypertensionThe commonest causes of pulmonary venous hypertension *: are.Mitral valve diseases -1.Lt. ven...
Pulmonary Venous Hypertension Pulmonary Venous Hypertension  in a patient with Mitral Valve             Disease
AortaWith aging the aorta becomes elongated, elongation * necessarily involveunfolding , where theascending aorta, will de...
Aorta: By CXR * The diagnosis of aortic aneurysm may be obvious, but -1 substantial dilatation may be needed before the bu...
Dissecting Aortic Aneurysm It is important to know the extent of the dissecting aneurysm as those involving the ascending ...
Dissecting Aortic Aneurysm     Trans-Esophageal Echocardiogram showing  the True (T( & False (F( lumina in the descending ...
Dissecting Aortic Aneurysm  CT-scan showing the displaced  intima (arrows( separating the     true & false luminae in the ...
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radiology.Lect 3 CVS.(dr.abeer)

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radiology.Lect 3 CVS.(dr.abeer)

  1. 1. Pulmonary Arterial Hypertension: The pressure in the pulmonary artery depends on *.Cardiac output -1.Pulmonary vascular resistance -2
  2. 2. Pulmonary Arterial HypertensionConditions that cause significant pulmonary arterial *hypertension all increase the resistance of blood flow: through the lungs, examples.(Various lung diseases (cor pulmonale -1.Pulmonary embolism -2 Pulmonary arterial narrowing in response to -3mitral.valve diseases orLt. to Rt. shunt .Idiopathic pulmonary hypertension -4
  3. 3. Pulmonary Arterial Hypertension: By CXR * There will be enlargement of the mean pulmonary artery + the hilar pulmonary artery, vessels within the lung tissue .are normal or small: Eisenmengers syndrome * Greatly raised pulmonary artery resistance in association withASD ,VSD , &PDA leading toreverse shunt (i.e. :Rt. to .(Lt. shunt
  4. 4. Pulmonary Arterial HypertensionThe cause of pulmonary arterial hypertension may be *visible on the CXR as cor pulmonale & mitral valve .diseases Pulmonary Arterial Hypertension due to ASD & Eisenmengers syndrome
  5. 5. Pulmonary Venous HypertensionThe commonest causes of pulmonary venous hypertension *: are.Mitral valve diseases -1.Lt. ventricular failure -2normal upright person )by CXR ( thelower zone vessels In *arelarger than theupper. zoneupper zone vessels In pulmonary venous hypertension the *. areenlargedsevere cases , theupper zone vessels becomelarger In * than that of thelower zone, & eventually Pulmonary Edema .will supervene & may obscure the blood vessels
  6. 6. Pulmonary Venous Hypertension Pulmonary Venous Hypertension in a patient with Mitral Valve Disease
  7. 7. AortaWith aging the aorta becomes elongated, elongation * necessarily involveunfolding , where theascending aorta, will deviate to theRt. & thedescending aorta to the.Ltbecause the aorta is fixed at theaortic valve & the.diaphragm.confused withaortic dilatation Unfolding aorta is easily *: Aortic dilatation of the ascending aorta is due to *.Aneurysm -1.Aortic regurgitation or aortic stenosis -2.Systemic hypertension -3The two common causes of descending aortic aneurysm *: are.Atheroma -1Aortic dissection. (Also, there is a rare cause as -2.(previous trauma following decelerating injury
  8. 8. Aorta: By CXR * The diagnosis of aortic aneurysm may be obvious, but -1 substantial dilatation may be needed before the bulge of .Rt. mediastinal border can be recognized Atheromatous aneurysm invariably shows calcification of -2 .their walls : NoteCT scan with IVCM orCT angiography orMRA are very *.useful to assess the aneurysm IVCM =I.V. C ontrastM.edia MRA =M agnaticR esonanceA.ngiography
  9. 9. Dissecting Aortic Aneurysm It is important to know the extent of the dissecting aneurysm as those involving the ascending aorta are treated surgically & those confined to the descending .aorta are treated with hypotensive drugs: By CXR * : Two congenital aortic anomalies can be seen, & they are .Coarctation of Aorta -1 ,Rt. sided aortic arch, in association with TOF -2 Pulmonary Atresia, & Truncus Arteriosus, or it also .can be isolated with no clinical significance
  10. 10. Dissecting Aortic Aneurysm Trans-Esophageal Echocardiogram showing the True (T( & False (F( lumina in the descending aorta
  11. 11. Dissecting Aortic Aneurysm CT-scan showing the displaced intima (arrows( separating the true & false luminae in the ascending & descending aorta

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