دورية أكاديمية
أعرض في EDS

Clinical evaluation of left ventricular function and morphology using an accelerated k-t sensitivity encoding method in cardiovascular magnetic resonance.

التفاصيل البيبلوغرافية
العنوان: Clinical evaluation of left ventricular function and morphology using an accelerated k-t sensitivity encoding method in cardiovascular magnetic resonance.
المؤلفون: Assuncao-Jr AN; Heart Institute (InCor), University of Sao Paulo Medical School, Sao Paulo, Brazil., Dantas-Jr RN; Heart Institute (InCor), University of Sao Paulo Medical School, Sao Paulo, Brazil. nerydjr@hotmail.com., do Val RM; Heart Institute (InCor), University of Sao Paulo Medical School, Sao Paulo, Brazil., Gianotto P; Heart Institute (InCor), University of Sao Paulo Medical School, Sao Paulo, Brazil., Marin ADS; Canon Medical Systems do Brasil, Sao Paulo, Brazil., Golden M; Canon Medical Systems Corporation, Otawara, Japan., Gutierrez MA; Heart Institute (InCor), University of Sao Paulo Medical School, Sao Paulo, Brazil., Parga JR; Heart Institute (InCor), University of Sao Paulo Medical School, Sao Paulo, Brazil., Nomura CH; Heart Institute (InCor), University of Sao Paulo Medical School, Sao Paulo, Brazil.
المصدر: Insights into imaging [Insights Imaging] 2019 Jun 13; Vol. 10 (1), pp. 62. Date of Electronic Publication: 2019 Jun 13.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Springer Country of Publication: Germany NLM ID: 101532453 Publication Model: Electronic Cited Medium: Print ISSN: 1869-4101 (Print) Linking ISSN: 18694101 NLM ISO Abbreviation: Insights Imaging Subsets: PubMed not MEDLINE
أسماء مطبوعة: Original Publication: Berlin : Springer
مستخلص: Objectives: To provide clinical validation of a recent 2D SENSE-based accelerated cardiovascular magnetic resonance (CMR) sequence (accelerated k-t SENSE), investigating whether this technique accurately quantifies left ventricle (LV) volumes, function, and mass as compared to 2D cine steady-state free precession (2D-SSFP).
Methods: Healthy volunteers (n = 16) and consecutive heart failure patients (n = 26) were scanned using a 1.5 T MRI system. Two LV short axis (SA) stacks were acquired: (1) accelerated k-t SENSE (5-6 breath-holds; temporal/spatial resolution: 37 ms/1.82 × 1.87 mm; acceleration factor = 4) and (2) standard 2D-SSFP (10-12 breath-holds; temporal/spatial resolution: 49 ms/1.67 × 1.87 mm, parallel imaging). Ascending aorta phase-contrast was performed on all volunteers as a reference to compare LV stroke volumes (LVSV) and validate the sequences. An image quality score for SA images was used, with lower scores indicating better quality (from 0 to 18).
Results: There was a high agreement between accelerated k-t SENSE and 2D-SSFP for LV measurements: bias (limits of agreement) of 2.4% (- 5.4% to 10.1%), 6.9 mL/m 2 (- 4.7 to 18.6 mL/m 2 ), - 1.5 (- 8.3 to 5.2 mL/m 2 ), and - 0.2 g/m 2 (- 11.9 to 12.3 g/m 2 ) for LV ejection fraction, end-diastolic volume index, end-systolic volume index, and mass index, respectively. LVSV by accelerated k-t SENSE presented good agreement with aortic flow. Interobserver and intraobserver variabilities for all LV parameters were also high.
Conclusion: The accelerated k-t SENSE CMR sequence is clinically feasible and accurately quantifies LV volumes, function, and mass, with short acquisition time and good image quality.
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معلومات مُعتمدة: 4565/17/065 Canon Medical Systems do Brasil
فهرسة مساهمة: Keywords: Cardiac function test; Cardiac imaging techniques; Cine magnetic resonance imaging; Congestive cardiomyopathies; Ventricular ejection fraction
تواريخ الأحداث: Date Created: 20190615 Latest Revision: 20200929
رمز التحديث: 20240628
مُعرف محوري في PubMed: PMC6565778
DOI: 10.1186/s13244-019-0750-6
PMID: 31197500
قاعدة البيانات: MEDLINE
الوصف
تدمد:1869-4101
DOI:10.1186/s13244-019-0750-6