Posted by 1659447091 6 days ago
This is the summary I get from chatgpt - comparing Histotripsy and ultrasound imaging
| Property | Strongest Diagnostic / Imaging Ultrasound | Histotripsy (Therapeutic Ultrasound |
| Frequency | 2 – 10 MHz (obstetric: 2–5 MHz; high-res imaging up to 15 MHz) | 0.25 – 3 MHz (sometimes up to 6 MHz) |
| Pressure (Peak Negative) | Up to ~5–6 MPa (mechanical index limit ≈ 1.9) | 10 – 100 MPa (depending on type: intrinsic vs. boiling histotripsy) |
| Intensity (Spatial Peak, Temporal Average) | Typically < 0.1 W/cm²; upper safe limit ≈ 0.72 W/cm² (FDA/AIUM) | 100 – 10,000 W/cm² (very high peak intensities) |
| Pulse Duration | Microseconds (∼1–5 µs typical) | Microseconds to milliseconds (short bursts for mechanical disruption) |
Its kind of hard to know what this means - some of the numbers seem pretty close/crossover - but I don't think saying the difference is akin to a laser and a light.