Myxoma MRI: Difference between revisions

Jump to navigation Jump to search
Line 7: Line 7:


==MRI==
==MRI==
On magnetic resonance imaging  cardiac myxoma characterized by a soft tissue mass within the [[cardiac chambers]] isointense to skeletal muscle:
 
MRI appearances are heterogeneous, reflecting the non-uniformity of these masses. They are typically spherical or ovoid masses which may be sessile or pedunculated.
 
*'''T1''': tend to be low to intermediate signal, but areas of haemorrhage may be high 3
*'''T2''': can be variable due to heterogeneity in tumour componants; e.g calcific components > low signal; myxomatous components  > high signal
*'''GE (gradient echo)''': may show blooming of calcific components
*'''T1 C+ (Gd)''': shows enhancement (important discriminator from a thrombus)


==Gallery==
==Gallery==

Revision as of 16:57, 25 November 2015

Myxoma Microchapters

Home

Patient Information

Overview

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating Myxoma from other Diseases

Epidemiology and Demographics

Risk Factors

Natural History, Complications and Prognosis

Diagnosis

Diagnostic Study of Choice

History and Symptoms

Physical Examination

Laboratory Findings

Electrocardiogram

Chest X Ray

CT

MRI

Echocardiography or Ultrasound

Other Imaging Findings

Other Diagnostic Studies

Treatment

Medical Therapy

Surgery

Cost-Effectiveness of Therapy

Future or Investigational Therapies

Case Studies

Case #1

Myxoma MRI On the Web

Most recent articles

Most cited articles

Review articles

CME Programs

Powerpoint slides

Images

American Roentgen Ray Society Images of Myxoma MRI

All Images
X-rays
Echo & Ultrasound
CT Images
MRI

Ongoing Trials at Clinical Trials.gov

US National Guidelines Clearinghouse

NICE Guidance

FDA on Myxoma MRI

CDC on Myxoma MRI

Myxoma MRI in the news

Blogs on Myxoma MRI

Directions to Hospitals Treating Myxoma

Risk calculators and risk factors for Myxoma MRI

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2] Ahmad Al Maradni, M.D. [3]Maria Fernanda Villarreal, M.D. [4]

Overview

On Magnetic Resonance Imaging (MRI) or Cardiac Magenetic Resonance(CMR), cardiac myxoma is characterized by a soft tissue mass within the cardiac chambers isointense to skeletal muscle. This imaging modality, plays an important role in the evaluation of cardiac masses and is of great value when echocardiographic findings are suboptimal or when the lesion has an atypical location or appearance. [1]

MRI

MRI appearances are heterogeneous, reflecting the non-uniformity of these masses. They are typically spherical or ovoid masses which may be sessile or pedunculated.

  • T1: tend to be low to intermediate signal, but areas of haemorrhage may be high 3
  • T2: can be variable due to heterogeneity in tumour componants; e.g calcific components > low signal; myxomatous components > high signal
  • GE (gradient echo): may show blooming of calcific components
  • T1 C+ (Gd): shows enhancement (important discriminator from a thrombus)

Gallery

Cardiac MRI in myxoma

ACC/AHA Guidelines- ACCF/ACR/AHA/NASCI/SCMR 2010 Expert Consensus Document on Cardiovascular Magnetic Resonance[2] (DO NOT EDIT)

CMR may be used for clinical evaluation of cardiac masses, extracardiac structures, and involvement and characterization of masses in the differentiation of tumors from thrombi.

References

  1. Grebenc ML, Rosado-de-Christenson ML, Green CE, Burke AP, Galvin JR (2002). "Cardiac myxoma: imaging features in 83 patients". Radiographics. 22 (3): 673–89. doi:10.1148/radiographics.22.3.g02ma02673.
  2. American College of Cardiology Foundation Task Force on Expert Consensus Documents. Hundley WG, Bluemke DA, Finn JP, Flamm SD, Fogel MA; et al. (2010). "ACCF/ACR/AHA/NASCI/SCMR 2010 expert consensus document on cardiovascular magnetic resonance: a report of the American College of Cardiology Foundation Task Force on Expert Consensus Documents". Circulation. 121 (22): 2462–508. doi:10.1161/CIR.0b013e3181d44a8f. PMC 3034132. PMID 20479157.


Template:WikiDoc Sources