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Exhibit 23.1
 
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
 
We hereby consent to incorporation by reference in this Registration Statement on Form S-8 of our report dated March 22, 2024, relating to the financial statements of GigCapital5, Inc., which appears in the Annual Report on Form 10-K of QT Imaging Holdings, Inc. for the year ended December 31, 2023. 
/s/ BPM LLP
San Jose, California
February 12, 2025