Vergleich der ödemsensitiven HASTE-TIRM-Sequenz mit der späten Kontrastmittelanreicherung bei akutem Myokardinfarkt

Stork, Alexander; Lund, Gunnar; Bansmann, Martin; Kemper, J.; Weiss, FU; Steiner, Péter; Meinertz, Thomas; Adam, Gerhard

doi:10.1055/s-2003-37225

Cited by 10 publications

(2 citation statements)

References 8 publications

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“…The thresholds of mean ± 2 standard deviations to identify hypointense, isointense and hyperintense regions were based on reports from previous perfusion imaging studies. 30–32 Each muscle voxel was categorized as either hypointense, isointense, and hyperintense in relation to the references values based on…”

Section: Methodsmentioning

confidence: 99%

Calf muscle perfusion as measured with magnetic resonance imaging to assess peripheral arterial disease

Brunner

Bismuth

Nambi

et al. 2016

Med Biol Eng Comput

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We hypothesized that skeletal muscle perfusion is impaired in peripheral arterial disease (PAD) patients compared to healthy controls and that perfusion patterns exhibit marked differences across five leg muscle compartments including the anterior muscle group (AM), lateral muscle group (LM), deep posterior muscle group (DM), soleus (SM), and the gastrocnemius muscle (GM). A total of 40 individuals (26 PAD patients, and 14 healthy controls) underwent contrast-enhanced magnetic resonance imaging (CE-MRI) utilizing a reactive hyperemia protocol. Muscle perfusion maps were developed for AM, LM, DM, SM, and GM. Perfusion maps were analyzed over the course of 2 minutes, starting at local pre-contrast arrival, to study early to intermediate gadolinium enhancement. PAD patients had a higher fraction of hypointense voxels at pre-contrast arrival for all five muscle compartments compared with healthy controls (p<0.0005). Among PAD patients, the fraction of hypointense voxels of the AM, LM, and GM were inversely correlated with the estimated glomerular filtration rate (eGFR; r= −0.509, p=0.008; r= −0.441, p=0.024; and r= −0.431, p=0.028, respectively). CE-MRI based skeletal leg muscle perfusion is markedly reduced in PAD patients compared with healthy controls and shows heterogeneous patterns across calf muscle compartments.

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Section: Methodsmentioning

confidence: 99%

Calf muscle perfusion as measured with magnetic resonance imaging to assess peripheral arterial disease

Brunner

Bismuth

Nambi

et al. 2016

Med Biol Eng Comput

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“…Ziel der Arbeit ist es, diese Anreicherungsmuster zusammenfassend gegenüberzustellen. Im akuten Infarktstadium kommt es zur Myokardnekrose sowie auch zur Ausbildung eines periinfarziellen Ödems [10,11]. Verstärkt wird dieses periinfarzielle Ödem durch eine Reperfusionstherapie.…”

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Muster der späten Kontrastmittelanreicherung in der MRT bei ischämischen und nicht-ischämischen Kardiomyopathien

Stork

Müllerleile²,

Pm³

et al. 2007

Fortschr Röntgenstr

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Contrast-enhanced MRI using the delayed-enhancement technique (DE-MRI) is widely applied in the clinical work-up of myocardial diseases. Myocardial diseases of varying etiology result in myocardial changes, such as necrosis, fibrosis, edema and metabolite deposition, which can be visualized by DE-MRI. Acute and chronic ischemic diseases based on a coronary artery disease as well as non-ischemic cardiomyopathies display DE. Cardiomyopathies often show a characteristic enhancement pattern. While ischemic lesions are localized in the subendocardium, non-ischemic cardiomyopathies often display an intramyocardial or subepicardial pattern. The typical pattern for dilated cardiomyopathies is band-like and intramyocardial with septal involvement. Arrhythmogenic right-ventricular dysplasias/cardiomyopathies are frequently associated with right-ventricular DE. In the case of amyloid cardiomyopathies which are often restrictive cardiomyopathies, subendocardial and circular DE is typically observed. Hypertrophic cardiomyopathies display patchy intramyocardial DE usually in the anteroseptal region. Acute myocarditis is typically accompanied by intramyocardial or subepicardial DE affecting the lateral wall. In the case of chronic myocarditis, intramyocardial or subepicardial DE is observed most frequently. Cardiac sarcoidosis typically entails patchy subepicardial DE with right- and left-ventricular involvement. Since there is an overlap between the enhancement patterns of cardiomyopathies, the diagnostic accuracy of DE-MRI is limited and the diagnosis must be based on additional clinical and MRI findings. The amount of DE often corresponds with cardiac functional parameters as well as with the frequency of cardiac events so that DE-MRI may be useful for risk stratification. Furthermore, DE-MRI can be helpful in the planning and evaluation of myocardial biopsies and electrophysiological examinations.

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T2‐weighted cardiovascular magnetic resonance imaging

Abdel-Aty

Simonetti

Friedrich

2007

Magnetic Resonance Imaging

199

154

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Technical advances in T2-weighted cardiovascular MR (CMR) imaging allow for accurate identification and quantification of tissue injuries that alter myocardial T2 relaxation. Of these, myocardial edema is of special relevance. Increased myocardial water content is an important feature of ischemic as well as nonischemic cardiomyopathies, which are often associated with acute myocardial inflammation. In this article, we review technical considerations and discuss clinical indications of myocardial T2-weighted imaging.

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Vergleich der ödemsensitiven HASTE-TIRM-Sequenz mit der späten Kontrastmittelanreicherung bei akutem Myokardinfarkt

Cited by 10 publications

References 8 publications

Calf muscle perfusion as measured with magnetic resonance imaging to assess peripheral arterial disease

Calf muscle perfusion as measured with magnetic resonance imaging to assess peripheral arterial disease

Muster der späten Kontrastmittelanreicherung in der MRT bei ischämischen und nicht-ischämischen Kardiomyopathien

T2‐weighted cardiovascular magnetic resonance imaging

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