EX-32.1 6 d767219dex321.htm EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of QT Imaging Holdings, Inc. (the “Registrant”) on Form 10-K for the period ending December 31, 2023, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I certify, in the capacity and on the date indicated below, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

| (1) | The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

| (2) | The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

Date: March 22, 2024 |  |  |  | By: |  | /s/ Dr. Raluca Dinu
|  |  |  |  |  | Name: Dr. Raluca Dinu
|  |  |  |  |  | Chief Executive Officer