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and reduced arterial compliance after converting enzyme inhibition in essential hypertension. Circulation 1988;78:941-950.

5. Devereux RB, Rechek N. Echocardiographical determination of left ven- tricular mass in man. Circulation 1977;55:613-618.

6. Aurigemma GP, Reichek NR, Venugopal R, et al. Automated left ventricu- lar mass, volume, and shape from three dimensional magnetic resonance imaging in vitro validation. Am J Cardiac Imaging 1991 ;5:257-263.

7. Caputo GR, Tscholakoff D, Sechtem U, et al, Measurement of canine left ventricular mass by using MR imaging. Am J Radio11987;48:33-38.

8. Shapiro EP, Rogers W J, Beyar R, et al. Determination of left ventricular mass by magnetic resonance imaging in hearts deformed by acute infarc- tion, Circulation 1989;79:706-711.

9. Clozel JP, Kuhn H, Hefti F. Effect of chronic ACE inhibition on cardiac hypertrophy and coronary vascular reserve in spontaneously hyperten- sive rats with developed hypertension. J Hypertens 1989;7:267-275.

10. Harrap SB, Van der Merwe WM, Griffin SA, et al. Brief angiotensin con- verting enzyme inhibitor treatment in young spontaneously hypertensive rats reduces blood pressure long-term. Hypertension 1990;16;603-614.

11. Black M J, Adams MA, Bobik A, et al. Effect of enalapril on aortic smooth muscle cell polyploidy in the spontaneously hypertensive rat. J Hypertens 1989;7:997-1003.

12, Oppelt A, Graumann R, Barfuss H, et al. FISP: a new fast MRI sequence. Electromedica 1986;54:15-18.

13. Declaration of Helsinki of the World Medical Association. Clinical Res 1966;14:103.

14. Aurigemma GA, Davidoff A, Silver K, et al. Left ventricular mass quantita- tion using single-phase cardiac magnetic resonance imaging. Am J Car- dio11992; 70:259-262.

15. Pattynama PM, Lamb H J, Van der Velde EA, et al. Reproducibility of MRI- derived measurements of right ventricular volumes and myocardial mass. Magn Reson Imaging 1995;13:53-63.

16. Grandi AM, Venco A, Barzizza F, et al. Effect of enalapril on left ventricular mass and performance in essential hypertension. Am J Cardiel 1989; 63:1093-1097.

17. Garavargia GE, Messerli FH, Nunez BD, et al. Immediate and short-term cardiovascular effects of a new converting enzyme inhibitor (lieinopril) in essential hypertension, Am J Cardio11988;62 :912-916.

18. Vyssoulis GP, Karpanou EA, Pitsavos CE, et al. Regression of left ventricular hypertrophy in systemic hypertension with beta blockers (propranolel, atenolol, metoprolol, pindolol and celiprolol). Am J Cardio11992;70:1209-1211.

19. Dietrich HC, Adler J, Ong J, et al, Effects of sustained-release nicardipine on regression of left ventricular hypertrophy in systemic hypertension. Am J Cardiol 1992;69:1559-1564.

20. Phillips RA, Ardeljan M, Shimabukuro S, et al. Effects of nifedipine-GITS on left ventricular mass and left ventricular filling. J Cardiovasc Pharmacol 1992; 19[suppl]:S28-S34.

E r r a t u m

There was an error in an article by Michael N. Eakins et al. titled "Physicochemical Properties, Pharmacokinet- ics, and Biodistribution of Gadoteridol Injection in Rats and Dogs," which appeared in Academic Radiology, Vol-

ume 2(7), pp. 584-591. On p. 586, equation 2 should read "Vd(total) ml/kg = [100(k12 + k21+ k13 - 13)/[(A + B)

k21]/kg." The publisher apologizes for any inconvenience this might have caused readers.

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