Where is the papillary muscle located

URL of Article. The right ventricle has 3 papillary muscles that attach to the cusps of the tricuspid valve : the anterior papillary muscle attaches to the chordae tendineae of the anterior and posterior cusps the posterior papillary muscle attaches to the chordae tendineae of the posterior and septal cusps the septal papillary muscle attaches to the chordae tendineae of the anterior and septal cusps Within the anterior papillary muscle, there is a prominent band that extends from the interventricular septum that contains the right bundle branch, known as the septomarginal trabecula or moderator band.

Last's anatomy, regional and applied. Churchill Livingstone. Read it at Google Books - Find it at Amazon 2. Clinically oriented anatomy. Read it at Google Books - Find it at Amazon.

Related articles: Anatomy: Thoracic. Promoted articles advertising. Go to the U of M home page. English Spanish. All rights reserved. Eur J Echocardiogr. Ranganathan N, Burch G Gross morphology and arterial supply of the papillary muscles of the left ventricle of man.

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Eur Heart J. Kwon DH, Setser RM, Thamilarasan M et al Abnormal papillary muscle morphology is independently associated with increased left ventricular outflow tract obstruction in hypertrophic cardiomyopathy. Maron MS Clinical utility of cardiovascular magnetic resonance in hypertrophic cardiomyopathy. Ker J Bigeminy and the bifid papillary muscle. Cardiovasc Ultrasound. Circ Cardiovasc Imaging. Maron M, Olivotto I, Harrigan C et al Mitral valve abnormalities identified by cardiovascular magnetic resonance represent a primary phenotypic expression of hypertrophic cardiomyopathy.

Schwammenthal E, Nakatani S, He S et al Mechanism of mitral regurgitation in hypertrophic cardiomyopathy: mismatch of posterior to anterior leaflet length and mobility. Patel P, Dhillon A, Popovic Z et al Left ventricular outflow tract obstruction in hypertrophic cardiomyopathy patients without severe septal hypertrophy: implications of mitral valve and papillary muscle abnormalities assessed using cardiac magnetic resonance imaging and echocardiography. Circ Cardiovasc Imaging Maron BJ, Nishimura RA, Danielson GK Pitfalls in clinical recognition and a novel operative approach for hypertrophic cardiomyopathy with severe outflow obstruction due to anomalous papillary muscle.

Coyne JT, Alfirevic A Reorientation of an obstructive, hypermobile papillary muscle: intraoperative echocardiographic assessment. Anesth Analg. Jensen H, Jensen MO, Vind-Kezunovic S et al Surgical relocation of the papillary muscles in functional ischemic mitral Regurgitation: what are the forces of the relocation stitches acting on the myocardium?

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Moller JH, Nakib A, Edwards J Infarction of papillary muscles and mitral insufficiency associated with congenital aortic stenosis. Hum Pathol. Mollet NR, Dymarkowski S, Volders W et al Visualization of ventricular thrombi with contrast-enhanced magnetic resonance imaging in patients with ischemic heart disease. J Cardiovasc Ultrasound. Tex Heart Inst J 38 3 — Cancer Imaging. Malaret G, Aliaga P Metastatic disease to the heart.

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Ann Diagn Pathol. Download references. We thank Megan Griffiths, scientific writer for the Imaging Institute, Cleveland Clinic, for her editorial assistance. Akron Radiology Inc, E. You can also search for this author in PubMed Google Scholar. Correspondence to Prabhakar Rajiah. Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. Movie S1. Movie S2. Movie S3. The distal chamber has lower function. Movie S4.

The apical chamber is dilated and has lower systolic function. Movie S5. There is also non-compaction involving the right ventricle. AVI kb. Movie S6. This is more distal than the usual level of obstruction, which is at the LVOT. Movie S7. Movie S8. Movie S9. Four-chamber SSFP shows only mild left ventricular hypertrophy, but the papillary muscles are hypermobile with a significant amount of slack. There is septal contact in systole, resulting in left ventricular outflow tract obstruction.

In addition, there is a thin accessory papillary muscle. There is also an eccentric mitral regurgitation. Short-axis cine SSFP images show infarction of the posteromedial papillary muscle, which is thin, irregular and shows restricted motion. Vertical long-axis cine SSFP showing hypointense thrombus at the anterolateral papillary muscle base.

Four-chamber cine SSFP showing hypointense thrombus at the base of the anterolateral papillary muscle. Four-chamber cine SSFP shows a lesion thought to be a thrombus by echocardiography is actually an accessory papillary muscle that is attached to the LV apex.

Vertical long-axis cine SSFP image demonstrates an intermediate signal mass attached to the anterolateral papillary muscle. Sign in with Apple. Description The papillary muscles are muscles located in the ventricles of the heart.

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