Company: QTIWW
Filing Date: 2025-02-05
Form Type: 424B3
Source: 0001628280-25-004061
Chunk: 212

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-02-05
Form: 424B3
Chunk 212
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 Academic Radiology, through which the study is accessible free of charge at https://www.academicradiology.org/article/S1076-6332(17)30207-6/fulltext).

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Example of a cyst visible on the QTscan (right) not sees on x-ray mammography (left)

Image 9</div>

Image 10 below is a case of lobular carcinoma. As with the previous cases, note that the QTscan offers comparable image quality and diagnostic information as an MRI, but without the high cost associated with MRI or patient experience issues associated with claustrophobia, radition or injection.

Example of a cancer not seen on x-ray mammography (far left), hand-held ultrasound (middle left) and non-enhancing on MRI with gadolinium injection (middle right) is clearly visible in the QTscan (far right).

<div align='center'>Image 10</div>

While the preceding cases describe and demonstrate certain advantages of the QTscan, due to limitations in print quality, case studies are best viewed on a high-quality monitor. Please visit the Company’s website to view additional case studies and image comparisons—https://www.qtimaging.com/casestudies/.

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Comparison of the QT Breast Scanner with currently available devices

#### 19
19 A medical device articulating arm is a mechanical arm or support structure used in medical procedures to position or hold surgical instruments, cameras, or other medical equipment. The arm typically consists of several articulated segments or joints that can be adjusted and locked in place to achieve a specific position or orientation. Medical device articulating arms are commonly used in minimally invasive surgeries, such as laparoscopy or endoscopy, where precise control and positioning of instruments are essential for successful outcomes.

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There are several differences between the QT Breast Scanner and HHUS, ABUS, BUST, PAI, and PAT devices.

Other devices use Piezo-electric transducers that provide primarily “B-mode” poor resolution data. There is no valid true “transmission mode” since they use shear wave. Their images have reflection and compounding artifacts. Furthermore, their images are compounded 2D slices and they do not acquire the data in 3D. The resolution of their “3D” mode, “speed” images and specificity for masses is poor and their contrast-to-noise ratios are low. Their images cannot differentiate calcifications so in our opinion