D

and Marco Rengo1



(1)
Department of Radiological Sciences, Oncology and Pathology, Sapienza University of Rome-Polo Pontino, Latina, Italy

(2)
Department of Radiology and Radiological Sciences, Medical University of South Carolina, Charleston, SC, USA

 




Damus–Kaye–Stansel Operation






  • Surgical operation performed in TGA, single ventricle, and restrictive VSD causing subaortic stenosis.


  • Side-to-side aorta and pulmonary artery connection to provide unrestricted blood flow from the systemic ventricle to the aorta.


D-Dimers






  • High negative predictive value for PE and DVT.


  • Positive D-dimer results with medium–high clinical probability of PE should be followed by CTA.


Dextrocardia






  • Anomalous cardiac position with the apex pointing the right chest wall.


  • Cardiac anatomy may be normal.


  • Check for other congenital cardiac lesions.


  • Differential diagnosis: in case of abnormal heart position, look for congenital absence of pericardium.


Diastolic Dysfunction






Diastolic Tail






DiGeorge Syndrome






  • Genetic disease on chromosome 22 leading to thymic hypoplasia with low T cell count, hypoparathyroidism with hypocalcemia, and outflow tract defects of the heart (ToF, truncus arteriosus, interrupted aortic arch, right-sided aortic arch, aberrant right subclavian artery).


Dilated Cardiomyopathy






  • Impaired systolic function with dilatation of cardiac chambers.


  • Diastolic function can be normal or impaired.


  • Causes: inherited (25 %), myocarditis, metabolic, nutritional, and persistent tachycardia. Usually diagnosis of exclusion.


  • Differential diagnosis: ischemic heart disease, valvular disease, adult congenital heart disease, left ventricular noncompaction, iron-overloaded cardiomyopathy, alcoholic cardiomyopathy, hypertensive heart disease.


  • See also section Cardiomyopathies​.


Dipyridamole




Mar 18, 2016 | Posted by in GASTROINTESTINAL IMAGING | Comments Off on D

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