EXHIBIT 16.1 ------------ LETTER REGARDING CHANGE IN CERTIFYING ACCOUNTANTS ------------------------------------------------- LUDLOW & HARRISON a CPA corporation 3545 Camino Del Rio South, Suite D (619) 283-3333 San Diego, CA 92108 Fax: (619) 283-7997 August 10, 2000 Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 20549 Gentlemen: The undersigned are the former independent public accountants for MRI Medical Diagnostics, Inc. (the "Company"). We have reviewed and agree with the statements made by the Company with respect to its change in accountants in Item 4 of its Report on Form 8-K dated on or about the date hereof. Very Truly Yours, /s/ Ludlow & Harrison Ludlow & Harrison a CPA corporation