Coarctation of the aorta: pre and postoperative evaluation with MRI and MR angiography; correlation with echocardiography and surgery

Didier, Dominique; Saint‐Martin, C.; Lapierre, Chantale; Trindade, Pedro T.; Lahlaidi, Nadia H.; Vallée, Jean‐Paul; Kalangos, A.; Friedli, Béat; Beghetti, Maurice

doi:10.1007/s10554-005-9037-8

Cited by 55 publications

(25 citation statements)

References 44 publications

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“…These techniques have been shown to allow an improved differentiation of slow or disturbed flow from thrombus and better delineation of intimal flaps compared to two-dimensional spin echo techniques [14]. The reconstruction of the raw data sets in the form of MPRs or MIPs provides the clinician with a fast and reliable appreciation of the afore mentioned aortic pathologies in any plane in a 3D format [15]. However, the latest improvement of non-contrast agent dependent techniques requires a re-evaluation of this superiority.…”

Section: Assessment Of Aortic Pathologiesmentioning

confidence: 99%

Comparison of different MRI techniques for the assessment of thoracic aortic pathology: 3D contrast enhanced MR angiography, turbo spin echo and balanced steady state free precession

Gebker

Gomaa

Schnackenburg

et al. 2007

Int J Cardiovasc Imaging

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Section: Assessment Of Aortic Pathologiesmentioning

confidence: 99%

Comparison of different MRI techniques for the assessment of thoracic aortic pathology: 3D contrast enhanced MR angiography, turbo spin echo and balanced steady state free precession

Gebker

Gomaa

Schnackenburg

et al. 2007

Int J Cardiovasc Imaging

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“…But it is sometimes difficult to obtain good visualization of the site of coarctation because of a poor acoustic window and the long distance between the transducer and the isthmic region. (7). Two coarctations were missed by Doppler echocardiography in this study, yielding a sensitivity of 91%.…”

Section: Discussionmentioning

confidence: 52%

“…Contrast-enhanced MR angiography is, for the most part, sufficient for evaluation of the aorta and its branches, whereas cine MRI and phasecontrast MRI allow assessment of the hemodynamic significance of the coarctation, as well as cardiac and valvular function (7,8). When multiplanar and three-dimensional postprocessing techniques became available, the role of CT in the assessment of thoracic vascular anomalies changed.…”

Section: Discussionmentioning

confidence: 99%

Coarctation of the aorta in adults: preoperative evaluation with MDCT angiography

Türkvatan¹,

Akdur²,

Ölçer³

et al. 2009

Diagn Interv Radiol

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Coarctation of the aorta is a congenital malformation and typically a disease of childhood and early adulthood, and there is a reduced life expectancy in patients who have not undergone correction. Without correction, the mean life expectancy of patients with coarctation of the aorta is 35 years, and 90% of untreated patients die before reaching the age of 50 years (1). Hypertensive vascular complications, cerebrovascular hemorrhages, aortic valve destruction, premature coronary artery disease, and aortic aneurysms are seen in patients with unrepaired coarctation of the aorta. In addition, dissection or rupture of the aorta is a life-threatening complication of coarctation of the aorta (2). Although the diagnosis of coarctation of the aorta can usually be made on clinical grounds, imaging is necessary to evaluate the exact anatomy of the lesion and to detect associated abnormalities. Recently, multidetector computed tomographic (MDCT) angiography has become a principal imaging modality for the evaluation of thoracic vascular anomalies because of its short acquisition time and high spatial resolution (3). MDCT angiography with multiplanar and three-dimensional techniques is the noninvasive method of choice for assessing the morphology of coarctation of the aorta, particularly to characterize the location, degree, and length of the narrowing; presence of collateral circulation; relationship to the left subclavian artery; and associated cardiovascular abnormalities. It is important to have accurate information about each of these parameters to devise surgical or interventional repair (4, 5).The aim of this study was to evaluate the reliability of 16-slice MDCT angiography for the preoperative morphologic assessment of coarctation of the aorta in adult patients. Materials and methodsTwenty-four adult patients (17 males and 7 females; median age, 31 years; range, 18-53 years) with clinical suspicion of coarctation of the aorta because of blood pressure gradient in the extremities and weak femoral pulses, who underwent both Doppler echocardiography and MDCT angiography, were included in this study. The symptoms of the patients were dyspnea on exertion (n = 7), chest pain (n = 6), leg weakness on exertion (n = 6), palpitation (n = 2), headache (n = 2), and epistaxis (n = 1). All MDCT images were evaluated for the site, degree and length of the coarctation; the presence of additional cardiac defects, such as patent ductus arteriosus and atrial or ventricular septal defect; and associated vascular anomalies such as an aberrant subclavian artery. The presence of an associated aneurysm and dissection of the thoracic aorta was assessed. The origin, visibility, and course of collateral vessels were also evaluated. Coarctation of the aorta was defined as greater than 25% decrease in vessel diameter. The degree of stenosis was considered severe if the ratio of the coarctation diameter to the distal descending aortic diameter was less MATERIALS AND METHODS Twenty-four adult patients with clinical suspicion of coarctation of the...

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“…In coarctation and interrupted aortic arch with aberrant right subclavian artery, conventional angiography can reveal blood flow direction through vertebral arteries, which cannot be determined by contrast-enhanced MR angiography [13]. Magnetic resonance imaging has also become a standard exam for post-treatment of aortic coarctation [15]. Pressure gradients may remain elevated at the coarctation site due to angulation and kinking of aortic arch and numerous abnormalities and complications after repair cannot be detected by Doppler echocardiography.…”

Section: Aortic Arch Anomaliesmentioning

confidence: 99%

Contrast-enhanced MR angiography of thoracic vascular malformations in children

Fítöz

Ünsal

Tekin

et al. 2007

International Journal of Cardiology

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Coarctation of the aorta: pre and postoperative evaluation with MRI and MR angiography; correlation with echocardiography and surgery

Abstract: MRI is superior to DE for pre and post-treatment evaluation of aortic coarctation. An optimal MR protocol is proposed. Internal measurement of the narrowing does not correspond to the external aspect of the surgical narrowing.

Cited by 55 publications

References 44 publications

Comparison of different MRI techniques for the assessment of thoracic aortic pathology: 3D contrast enhanced MR angiography, turbo spin echo and balanced steady state free precession

Comparison of different MRI techniques for the assessment of thoracic aortic pathology: 3D contrast enhanced MR angiography, turbo spin echo and balanced steady state free precession

Coarctation of the aorta in adults: preoperative evaluation with MDCT angiography

Contrast-enhanced MR angiography of thoracic vascular malformations in children

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