safe, noninvasive breast imaging

The QTscan® is a non-invasive, FDA cleared breast imaging tool. It is not intended as a replacement for screening mammography. Transmission ultrasound together with reflection ultrasound provide highly complementary and synergistic information about breast tissue, which may enable healthcare providers to assess breast health.

The dense breast challenge

Conventional breast imaging modalities, such as mammography, face tremendous challenges when imaging dense breast tissue, which puts women with dense breasts – nearly half the female population – at an immediate disadvantage. This is because cancer can appear similar to regular breast tissue and if there is a lot of breast tissue (such as in the case of dense breasts), the cancer can ‘hide’. Our QT technology has the ability to image through dense breasts, and our ongoing clinical trials aim to confirm how the QTscan can effectively detect suspicious regions. Our case studies show MRI-like images with no injections.


3D Mammography with Tomosynthesis

Handheld Ultrasound

Breast MRI


Case study of single subject with suspicious mass as viewed across multiple imaging modalities.

(not visible)

Handheld Ultrasound

Breast MRI


Case study of Invasive Lobular Carcinoma as viewed across multiple imaging modalities.

See the rest of the comparative case studies Read our Dense Breast Mass Detection Study

Quantitative Breast Density (QBD®)

QBD is the innovative new technology that promises to measure breast density, with no radiation or compression. This feature is only available in QT Ultrasound’s Research Mode and is not FDA cleared.


Steps in the quantitative breast density algorithm: Top row, speed of sound images. Middle row, breast separated from the water bath with skin and fibroglandular tissue segmented from the total breast tissue volume. Bottom row, remaining fibroglandular tissue following the segmentation and removal of skin.

Read the published findings

True 3D Volumetric Accuracy

QT Ultrasound’s research shows that it has the potential to measure and follow masses in the breast with high accuracy and precision. Our technology generates 3D speed-of-sound maps that can be used to perform volumetric measurement. Tumor volume doubling time is associated with growth rate and tumor biology. We hope to one day be able to provide the accurate measurement of tumor volume which is critical for oncologic diagnosis, staging, and treatment, including quantification of neoadjuvant response.

Bland-Altman plots showing absolute agreement between volume of mass assessed using (left) ground truth and QT, (middle) ground truth and HHUS-spherical method, and (right) ground truth and HHUS-ellipsoid method. The spherical and ellipsoid methods corresponding to volume calculation formulas.

Read the Abstract published by RSNA

AI-enabled diagnosis platform

QT Ultrasound’s research and development includes what may soon be the first artificial intelligence-enabled algorithm in transmission ultrasound to aid in the diagnosis of cancer. AI-based algorithms have gained tremendous acceptance throughout medical imaging and we hope to provide radiologists with a tool that can increase specificity. AI tools with the QTviewer® may enable features analysis to categorize findings as either benign or malignant. Our goal is to markedly reduce false positives and unnecessary biopsies. This is not an FDA cleared feature.

Read the RSNA abstract

Breast imaging matters

50% of women have dense breasts, placing them at increased risk of breast cancer.*

This year, more than 250,000 U.S. women will be diagnosed with breast cancer.*

Follow-up imaging does not mean a woman has cancer. Fewer than 1 in 10 women that get called back for more tests are found to have cancer.*