Effects of metallic implants on magnetic resonance imaging evaluation of Fontan palliation

Garg, Ruchira; Powell, A.; Sena, Laureen; Marshall, Audrey C.; Geva, Tal

doi:10.1016/j.amjcard.2004.10.053

Cited by 68 publications

(35 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The details of the CMR protocols and MDE acquisitions used in our laboratory for assessment of patients with congenital heart disease have been published (10-12). The MDE technique has evolved during the study period as technologic advances became available.…”

Section: Methodsmentioning

confidence: 99%

Myocardial Fibrosis Identified by Cardiac Magnetic Resonance Late Gadolinium Enhancement Is Associated With Adverse Ventricular Mechanics and Ventricular Tachycardia Late After Fontan Operation

Rathod

Prakash

Powell

et al. 2010

Journal of the American College of Cardiology

Self Cite

171

View full text Add to dashboard Cite

Objectives To evaluate the relationship between myocardial fibrosis identified by cardiac magnetic resonance (CMR) and ventricular performance and arrhythmias in patients late after the Fontan operation. Background Patients who have undergone the Fontan palliation may develop ventricular dysfunction and arrhythmias, but the mechanisms and risk factors are poorly defined. Methods All patients who have had a Fontan operation and a CMR study with the myocardial delayed enhancement technique from January 2002 to November 2008 were retrospectively identified. Results Of 90 patients (mean age at study 23.1 ± 10.9 years), 25 (28%) had positive late gadolinium enhancement (LGE) in the ventricular myocardium. Patients with positive LGE had lower mean ejection fraction (EF) (45% v. 56%, P<0.001), increased median end-diastolic volume (EDVi) (100 mL/BSA1.3 v. 82 mL/BSA1.3, P=0.004), increased median ventricular massi (63 g/BSA1.3 v. 45 g/BSA1.3, P<0.001), higher frequency of regional wall motion abnormalities (52% v. 28%, P=0.05), and higher frequency of non-sustained ventricular tachycardia (NSVT) (36% v. 11%, P=0.01). Multivariate regression analysis demonstrated that more extensive positive LGE, expressed as percent LGE of total myocardial mass, was associated with lower EF (P=0.002), increased EDVi (P<0.001), increased massi (P<0.001), and a higher frequency of NSVT (OR 1.2, 95% CI 1.1 to 1.4, P=0.006). Conclusions In this cohort of late Fontan survivors, myocardial fibrosis was common and associated with adverse ventricular mechanics and higher prevalence of NSVT. Further studies are warranted to examine the utility of LGE for risk stratification and treatment of ventricular arrhythmia and dysfunction in Fontan patients.

show abstract

Section: Methodsmentioning

confidence: 99%

Myocardial Fibrosis Identified by Cardiac Magnetic Resonance Late Gadolinium Enhancement Is Associated With Adverse Ventricular Mechanics and Ventricular Tachycardia Late After Fontan Operation

Rathod

Prakash

Powell

et al. 2010

Journal of the American College of Cardiology

Self Cite

171

View full text Add to dashboard Cite

show abstract

“…Although catheter-based angiography reveals excellent anatomical detail, it is used very selectively due to its invasive nature. However, with endovascular improvements in care and increased use of stents and devices, there is an increasing population in whom MRI may be suboptimal, due to signal void artifacts that may preclude accurate anatomical assessment [6][7][8] or may be contraindicated, as in the case of pacing devices [9]. In addition, in patients with a high sedation or general anesthesia risk, or in patients requiring emergent imaging, CT angiography at times serves as an excellent, rapid, noninvasive alternative to provide diagnostic information [8,[10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Prevalence of non-cardiovascular findings on CT angiography in children with congenital heart disease

et al. 2016

View full text Add to dashboard Cite

Non-cardiovascular findings are common in children with congenital heart disease who undergo CT angiography. Based upon our study population, if a child with congenital heart disease has a CT angiography, five out of six will have non-cardiovascular findings, while nearly three out of four (73.7%; 221 / 300) will have significant non-cardiovascular findings. Close attention to the non-cardiovascular structures in children with congenital heart disease presenting for a CT angiography is recommended as in nearly 40% of these children, findings were unexpected and directly altered patient care.

show abstract

“…The magnitude of artefacts produced is proportional to the amount of ferromagnetic materials contained within these devices, which can have significant impact on the quality and interpretation of the study (Figs. 5 and 6) [51,52] with SSFP cine imaging. Thus, implants made of platinum or Nitinol exudes fewer artefacts, but not zero.…”

Section: Devices/implantsmentioning

confidence: 99%

Role of cardiac MRI and CT in Fontan circulation

Yeong

Loughborough

Hamilton

et al. 2017

J Congenit Heart Dis

View full text Add to dashboard Cite

A Fontan circulation is a series of palliative surgical procedures, which result in the diversion of the systemic venous return into pulmonary arterial circulation without passing through a ventricle. It is one of the available surgical strategies for patients with cardiac defects that preclude a successful bi-ventricular repair, which encompass a range of complex anatomy. This surgical repair has gone through a series of modifications since the concept was introduced in 1971. Echocardiography remains a vital tool in assessing patients with Fontan circulations but its limitations are well recognised. Cross-sectional imaging modalities such as cardiac MRI and CT are essential components in the systematic clinical evaluation of these patients. The purpose of this review is to understand the information that can be obtained with each cross-sectional modality as well as highlight the challenges that each modality faces.

show abstract

Effects of metallic implants on magnetic resonance imaging evaluation of Fontan palliation

Cited by 68 publications

References 14 publications

Myocardial Fibrosis Identified by Cardiac Magnetic Resonance Late Gadolinium Enhancement Is Associated With Adverse Ventricular Mechanics and Ventricular Tachycardia Late After Fontan Operation

Myocardial Fibrosis Identified by Cardiac Magnetic Resonance Late Gadolinium Enhancement Is Associated With Adverse Ventricular Mechanics and Ventricular Tachycardia Late After Fontan Operation

Prevalence of non-cardiovascular findings on CT angiography in children with congenital heart disease

Role of cardiac MRI and CT in Fontan circulation

Contact Info

Product

Resources

About