Clearer CT scans using photon-counting detectors and multiple X‑ray focal spots
Ultra-high spatial resolution photon-counting CT with multiple focal spots
This project aims to produce much sharper CT images so doctors can see tiny lung, heart, and bone details more clearly.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Johns Hopkins University NIH-funded |
| Lab location | 1 site (Baltimore, United States) |
| Project ID | NIH-11306584 on NIH RePORTER |
What this research studies
This work is developing a new CT scanning approach that pairs very small photon-counting detector pixels with a novel method of using multiple, structured X‑ray focal spots during image capture. By changing how the X‑ray source is used across the scan, the team hopes to boost spatial resolution without making images noisier. The researchers will implement and test this data‑acquisition strategy on CT hardware and compare image quality for chest and bone scans. If successful, the method could be translated into clinical imaging protocols at Johns Hopkins to help reveal fine anatomic detail that current CTs may miss.
Who could benefit from this research
Good fit: People who need very high-resolution chest or bone CT imaging—for example those being evaluated for small lung nodules, interstitial lung disease, or detailed bone structure—would be most relevant and may be invited to participate.
Not a fit: People who only need routine low-resolution CTs, who cannot safely have CT scans (such as pregnant individuals), or who cannot travel to the study site may not receive direct benefit.
Why it matters
Potential benefit: If successful, patients could get clearer CT scans that help detect small lung, heart, or bone problems earlier and guide better treatment decisions.
How similar studies have performed: Early clinical and research photon-counting CT systems have already shown improved image detail for chest imaging, but using multiple structured focal spots to overcome X‑ray source limits is a novel approach.
Where this research is happening
Baltimore, United States
- Johns Hopkins University — Baltimore, United States (Active)
Researchers
- Principal investigator: Stayman, Joseph Webster — Johns Hopkins University
- Study coordinator: Stayman, Joseph Webster
About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page below.