-transparent.png){kind=logo}
Genetically modified mice have created the need for accurate noninvasive left ventricular mass (LVM) measurements. Recent technical advances provide two-dimensional images adequate for LVM calculation using the area-length method, which in humans is more accurate than M-mode methods. We compared the standard M-mode and area-length methods in mice over a wide range of LV sizes and weights (62-210 mg). Ninety-one CD-1 mice (38 normal, 44 aortic banded, and 9 inherited dilated cardiomyopathy) were imaged transthoracically (15 MHz linear transducer, 120 Hz). Compared with necropsy weights, area-length measurements showed higher correlation than the M-mode method (r = 0.92 vs. 0.81), increased accuracy (bias +/- SD: 1.4 +/- 27.1% vs. 36.7 +/- 51.6%), and improved reproducibility. There was no significant difference between end-systolic and end-diastolic estimates. The truncated ellipsoid estimation produced results similar in accuracy to the area-length method. Whereas current echocardiographic technology can accurately and reproducibly estimate LVM with the two-dimensional, area-length formula in a variety of mouse models, additional technological improvements, rather than refinement of geometric models, will likely improve the accuracy of this methodology.
K A Collins, and
C E Korcarz, and
S G Shroff, and
J E Bednarz, and
R C Fentzke, and
H Lin, and
J M Leiden, and
R M Lang
November 2006,
Echocardiography (Mount Kisco, N.Y.),
K A Collins, and
C E Korcarz, and
S G Shroff, and
J E Bednarz, and
R C Fentzke, and
H Lin, and
J M Leiden, and
R M Lang
April 1977,
British heart journal,
K A Collins, and
C E Korcarz, and
S G Shroff, and
J E Bednarz, and
R C Fentzke, and
H Lin, and
J M Leiden, and
R M Lang
May 1995,
Circulation research,
K A Collins, and
C E Korcarz, and
S G Shroff, and
J E Bednarz, and
R C Fentzke, and
H Lin, and
J M Leiden, and
R M Lang
April 1982,
Lancet (London, England),
K A Collins, and
C E Korcarz, and
S G Shroff, and
J E Bednarz, and
R C Fentzke, and
H Lin, and
J M Leiden, and
R M Lang
August 2015,
Anesthesia and analgesia,
K A Collins, and
C E Korcarz, and
S G Shroff, and
J E Bednarz, and
R C Fentzke, and
H Lin, and
J M Leiden, and
R M Lang
February 2005,
Journal of hypertension,
K A Collins, and
C E Korcarz, and
S G Shroff, and
J E Bednarz, and
R C Fentzke, and
H Lin, and
J M Leiden, and
R M Lang
January 1979,
Revista de la Facultad de Ciencias Medicas (Cordoba, Argentina),
K A Collins, and
C E Korcarz, and
S G Shroff, and
J E Bednarz, and
R C Fentzke, and
H Lin, and
J M Leiden, and
R M Lang
May 2010,
Current cardiology reports,
K A Collins, and
C E Korcarz, and
S G Shroff, and
J E Bednarz, and
R C Fentzke, and
H Lin, and
J M Leiden, and
R M Lang
September 1990,
Minerva medica,
K A Collins, and
C E Korcarz, and
S G Shroff, and
J E Bednarz, and
R C Fentzke, and
H Lin, and
J M Leiden, and
R M Lang
April 2009,
Laboratory animals,
