Coartazione aortica: studio con tecniche RM

Translated title of the contribution: MR imaging of aortic coarctation

F. Secchi, A. Iozzelli, G. D E Papini, A. Aliprandi, G. Di Leo, F. Sardanelli

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Aortic coarctation accounts for 5%-10% of all congenital heart diseases and represents 7% of critically ill infants with heart disease. Magnetic resonance (MR) imaging allows the study of this disease with several advantages in comparison with conventional angiography, transesophageal echocardiography, and computed tomography. The MR protocol applied at our institution for both diagnosis and follow-up after surgical or endovascular treatment consists of four steps: morphologic study, cine MR study, flow analysis, and MR angiography (MRA). The first three sequences are acquired during breath-hold and with electrocardiographic gating. Anatomy is well depicted with dark-blood half-Fourier acquisition single-shot turbo spin-echo (HASTE) sequences. Cine true-fast imaging with steady-state precession (true-FISP) sequences show not only morphologic features but also blood-flow changes inside the aorta. Gradient-echo sequences for phase-velocity mapping allow flow analysis. Application of Bernoulli's equation - here briefly presented and discussed - allows for calculation of the pressure gradient caused by the coarctation. MRA, acquired with a breath-hold three-dimensional T1-weighted gradient-echo sequence and intravenous administration of paramagnetic contrast material, allows for optimal depiction of the aortic lumen, with a panoramic view of the whole aorta, its main branches and possible collateral circulation.

Original languageItalian
Pages (from-to)524-537
Number of pages14
JournalRadiologia Medica
Volume114
Issue number4
DOIs
Publication statusPublished - Jun 2009

Fingerprint

Aortic Coarctation
Aorta
Heart Diseases
Angiography
Magnetic Resonance Spectroscopy
Magnetic Resonance Imaging
Collateral Circulation
Magnetic Resonance Angiography
Transesophageal Echocardiography
Critical Illness
Intravenous Administration
Contrast Media
Anatomy
Tomography
Pressure
Therapeutics

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

Coartazione aortica : studio con tecniche RM. / Secchi, F.; Iozzelli, A.; Papini, G. D E; Aliprandi, A.; Di Leo, G.; Sardanelli, F.

In: Radiologia Medica, Vol. 114, No. 4, 06.2009, p. 524-537.

Research output: Contribution to journalArticle

Secchi, F. ; Iozzelli, A. ; Papini, G. D E ; Aliprandi, A. ; Di Leo, G. ; Sardanelli, F. / Coartazione aortica : studio con tecniche RM. In: Radiologia Medica. 2009 ; Vol. 114, No. 4. pp. 524-537.
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