Adult congenital heart disease imaging with second-generation dual-source computed tomography: initial experiences and findings.
Adult congenital heart disease patients present a unique challenge to the cardiac imager. Patients may present with both acute and chronic manifestations of their complex congenital heart disease and also require surveillance for sequelae of their medical and surgical interventions. Multimodality imaging is often required to clarify their anatomy and physiology. Radiation dose is of particular concern in these patients with lifelong imaging needs for their chronic disease. The second-generation dual-source scanner is a recently available advanced clinical cardiac computed tomography (CT) scanner. It offers a combination of the high-spatial resolution of modern CT, the high-temporal resolution of dual-source technology, and the wide z-axis coverage of modern cone-beam geometry CT scanners. These advances in technology allow novel protocols that markedly reduce scan time, significantly reduce radiation exposure, and expand the physiologic imaging capabilities of cardiac CT. We present a case series of complicated adult congenital heart disease patients imaged by the second-generation dual-source CT scanner with extremely low-radiation doses and excellent image quality.
Cardiac MR PET CT Program, Department of Radiology and Division of Cardiology, Massachusetts General Hospital and Harvard Medical School, Boston, Mass, USA.
Brian B
BB
Ghoshhajra
Manavjot S
MS
Sidhu
Ahmed
A
El-Sherief
Carlos
C
Rojas
Doreen Defaria
DD
Yeh
Leif-Christopher
LC
Engel
Richard
R
Liberthson
Suhny
S
Abbara
Ami
A
Bhatt
D000328:Adult; D055424:Cardiac-Gated Imaging Techniques; D017023:Coronary Angiography / Q000295:instrumentation / Q000379:methods*; D004867:Equipment Design; D005260:Female; D006330:Heart Defects, Congenital / Q000150:complications / Q000000981:diagnostic imaging* / Q000628:therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D011379:Prognosis; D011829:Radiation Dosage; D013997:Time Factors; D036542:Tomography, Spiral Computed; D014057:Tomography, X-Ray Computed / Q000295:instrumentation; D055815:Young Adult