MR-Tomographie in der morphologischen Darstellung der isolierten non-compaction des linksventrikulären Myokards (NCVM)

TY - JOUR

T1 - MR-Tomographie in der morphologischen Darstellung der isolierten non-compaction des linksventrikulären Myokards (NCVM)

AU - Weiss, F

AU - Habermann, C R

AU - Lilje, C

AU - Razek, W

AU - Sievers, J

AU - Weil, J

AU - Adam, G

PY - 2003/9

Y1 - 2003/9

N2 - PURPOSE: To report the detection of non-compacted ventricular myocardium (NCVM) with MRI compared to echocardiography in 8 patients.MATERIAL AND METHODS: Non-compaction of the ventricular myocardium is a congenital disorder characterized by an altered structure of the myocardial wall resulting from an intrauterine arrest in endomyocardial embryogenesis. The morphological findings consist of a prominent meshwork of multiple myocardial trabeculations and deep intertrabecular recesses, communicating with the left ventricular cavity. 8 consecutive patients (mean age 7.3 years) with clinical and echocardiographic signs of NCVM were examined by MRI (1.5 T, Vision, Siemens) in short axis and 2- and 4-chamber views, using T (1)-weighted TSE and Cine-GRE in 6 patients and true FISP sequences in 2 patients. MRI and echocardiography were evaluated for visibility, signs of NCVM and involvement of myocardial wall segments. Thickness was measured for non-compacted and compacted myocardium and the non-compacted to compacted (N/C) ratio calculated.RESULTS: MRI diagnosed 6 of 8 patients of having NCVM. Myocardial thickness as measured by echocardiography and MRI showed a good correlation in compacted myocardium (r = 8.82) and no correlation in non-compacted myocardium (r = 0.4). In 2 cases, non-compacted myocardium was detected but echocardiography did not reach the N/C ratio > 2 as required to diagnose NCVM in accordance with the criteria found in the literature. Both patients were also misdiagnosed by MRI performed with Cine-GRE. MRI reached a N/C ratio > 2 in only three patients. Newer TruFisp sequences showed no definite advantages. Extent of non-compaction could be visualized correctly with MRI.CONCLUSION: Echocardiography is the method of choice to detect NCVM. MRI can be an alternative in some cases. The diagnosis of NCVM should not be considered until N/C ratio is over 2.

AB - PURPOSE: To report the detection of non-compacted ventricular myocardium (NCVM) with MRI compared to echocardiography in 8 patients.MATERIAL AND METHODS: Non-compaction of the ventricular myocardium is a congenital disorder characterized by an altered structure of the myocardial wall resulting from an intrauterine arrest in endomyocardial embryogenesis. The morphological findings consist of a prominent meshwork of multiple myocardial trabeculations and deep intertrabecular recesses, communicating with the left ventricular cavity. 8 consecutive patients (mean age 7.3 years) with clinical and echocardiographic signs of NCVM were examined by MRI (1.5 T, Vision, Siemens) in short axis and 2- and 4-chamber views, using T (1)-weighted TSE and Cine-GRE in 6 patients and true FISP sequences in 2 patients. MRI and echocardiography were evaluated for visibility, signs of NCVM and involvement of myocardial wall segments. Thickness was measured for non-compacted and compacted myocardium and the non-compacted to compacted (N/C) ratio calculated.RESULTS: MRI diagnosed 6 of 8 patients of having NCVM. Myocardial thickness as measured by echocardiography and MRI showed a good correlation in compacted myocardium (r = 8.82) and no correlation in non-compacted myocardium (r = 0.4). In 2 cases, non-compacted myocardium was detected but echocardiography did not reach the N/C ratio > 2 as required to diagnose NCVM in accordance with the criteria found in the literature. Both patients were also misdiagnosed by MRI performed with Cine-GRE. MRI reached a N/C ratio > 2 in only three patients. Newer TruFisp sequences showed no definite advantages. Extent of non-compaction could be visualized correctly with MRI.CONCLUSION: Echocardiography is the method of choice to detect NCVM. MRI can be an alternative in some cases. The diagnosis of NCVM should not be considered until N/C ratio is over 2.

KW - Adolescent

KW - Age Factors

KW - Aged

KW - Child

KW - Child, Preschool

KW - Echocardiography

KW - Electrocardiography

KW - Heart Defects, Congenital/diagnosis

KW - Heart Rate

KW - Humans

KW - Infant

KW - Magnetic Resonance Imaging/methods

KW - Magnetic Resonance Imaging, Cine/methods

KW - Ventricular Dysfunction, Left/diagnosis

U2 - 10.1055/s-2003-41932

DO - 10.1055/s-2003-41932

M3 - SCORING: Zeitschriftenaufsatz

C2 - 12964076

VL - 175

SP - 1214

EP - 1219

JO - ROFO-FORTSCHR RONTG

JF - ROFO-FORTSCHR RONTG

SN - 1438-9029

IS - 9

ER -