CT and MR Imaging of the Mitral Valve: Radiologic-Pathologic Correlation

Morris, Michael; Maleszewski, Joseph J.; Suri, Rakesh M.; Burkhart, Harold M.; Foley, Thomas A.; Bonnichsen, Crystal R.; Anavekar, Nandan S.; Young, Phillip M.; Williamson, Eric E.; Glockner, James F.; Araoz, Philip A.

doi:10.1148/rg.306105518

Cited by 70 publications

(25 citation statements)

References 50 publications

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“…On the other hand, functional (or secondary) MR is characterised by the presence of mitral regurgitation in the absence of organic lesions. In this latter case, MR is secondary to both regional and global ventricular remodelling (usually secondary to ischaemic or dilated idiopathic cardiomyopathy) [[4], [5], [6], [7]]. …”

Section: Pathophysiology Of Mrmentioning

confidence: 99%

“…Over time, the left ventricle may develop a loss of contractile efficiency due to prolonged volume overload with an increase in end-diastolic pressure. Moreover, left ventricular dilation may lead to dilation of the mitral annulus, which further increases MR severity in a potential downward spiral towards chronic heart failure [4,5,9]. …”

Section: Pathophysiology Of Mrmentioning

confidence: 99%

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Preprocedural planning of transcatheter mitral valve interventions by multidetector CT: What the radiologist needs to know

Faggioni

Gabelloni

Accogli

et al. 2018

European Journal of Radiology Open

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Mitral regurgitation is the most common valve disorder in the Western world, and although surgery is the established therapeutic gold standard, percutaneous transcatheter mitral interventions are gaining acceptance in selected patients who are inoperable or at an exceedingly high surgical risk. For such patients, multidetector computed tomography (MDCT) can provide a wealth of valuable morphological and functional information in the preoperative setting. Our aim is to give an overview of the MDCT image acquisition protocols, post-processing techniques, and imaging findings with which radiologists should be familiar to convey all relevant information to the Heart Team for successful treatment planning.

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Section: Pathophysiology Of Mrmentioning

confidence: 99%

Section: Pathophysiology Of Mrmentioning

confidence: 99%

Preprocedural planning of transcatheter mitral valve interventions by multidetector CT: What the radiologist needs to know

Faggioni

Gabelloni

Accogli

et al. 2018

European Journal of Radiology Open

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“…The sagittal view of the mitral valve is similar to the threechamber view of the heart and may be obtained by setting the images perpendicular to the mitral valve coaptation line on the en face view (Fig 4a, 4b). Normally, the medial to lateral length of the posterior mitral valve leaflet is longer than that of the anterior leaflet, and the coaptation margin of the mitral valve is not a straight line, but rather a curved line with a D-shaped mitral annulus (11). Therefore, in a scallop near the medial or lateral commissures (ie, A1, A3, P1, and P3), the sagittal view of the mitral plane may be different from the three-chamber view.…”

Section: Sagittal View Of the Mitral Valvementioning

confidence: 99%

Demonstration of Mitral Valve Prolapse with CT for Planning of Mitral Valve Repair

Koo¹,

Yang²,

Oh³

et al. 2014

RadioGraphics

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Mitral valve prolapse (MVP), the most frequent cause of severe nonischemic mitral regurgitation, often warrants surgical or interventional valve repair. The severity of mitral regurgitation positively correlates with the development of heart failure and death. Even in patients who are asymptomatic, severe mitral regurgitation causes higher rates of death, heart failure, and atrial fibrillation. Repair procedures for mitral regurgitation have progressed to include leaflet repair, chordal transfer, ring or band annuloplasty, and new percutaneous procedures. In planning for mitral valve repair, detection and localization of mitral valve abnormalities are important. The causes of mitral regurgitation include degenerative mitral valve (eg, prolapsed leaflet, myxomatous degeneration, and Barlow disease [excessive degenerated tissues with elongated chordae]). Cardiac computed tomography (CT) is helpful for depicting mitral valve abnormalities. It allows complete visualization of cardiac anatomic features, including the coronary arteries, paravalvular structures, and cardiac wall motion. This review addresses the role of cardiac CT in depicting anatomic features of the mitral valve, provides a practical method for localizing the exact site of MVP, and discusses the CT findings of various causes of mitral regurgitation. The first step in reconstructing CT images for MVP is to select the best cardiac phase for depicting the anatomic features of the mitral valve. Additional views of the mitral valve then show the specific mitral valve abnormality. This article provides technical tips for demonstrating MVP with CT, as well as imaging results for various causes of MVP and intraoperative findings. Online supplemental material is available for this article.

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“…In the case of isolated MR, evaluation of jet severity via CMR could be performed as the difference between the LV stroke volume and the anterograde aortic flow, or the difference between left and right ventricular stroke volumes [51]. As these approaches do not rely on the direct assessment of the regurgitant jet, CMR is suitable for quantifying multiple or eccentric regurgitant jets [52].…”

Section: Other Imaging Modalitiesmentioning

confidence: 99%

“…Advances in computed tomography have substantially improved the temporal resolution of this technique to the point that it can now be applied to quantify the severity of MR [51,56] and in the diagnosis of MV prolapse [57]. However, radiation exposure in computed tomography is still a concern and the use of this imaging modality is not recommended for the direct assessment of MV prolapse [57].…”

Section: Other Imaging Modalitiesmentioning

confidence: 99%

Advances in echocardiography: insights into the mitral valve and implications for surgical and percutaneous repair

Maffessanti¹,

Tamborini²,

Fusini³

et al. 2013

Interventional Cardiology

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CT and MR Imaging of the Mitral Valve: Radiologic-Pathologic Correlation

Cited by 70 publications

References 50 publications

Preprocedural planning of transcatheter mitral valve interventions by multidetector CT: What the radiologist needs to know

Preprocedural planning of transcatheter mitral valve interventions by multidetector CT: What the radiologist needs to know

Demonstration of Mitral Valve Prolapse with CT for Planning of Mitral Valve Repair

Advances in echocardiography: insights into the mitral valve and implications for surgical and percutaneous repair

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