Surgery — the deliberate incision through healthy tissue to access, remove, or repair pathological structures — remains medicine's most powerful intervention for a wide range of conditions. It is also, by necessity, controlled trauma: the physiological cost of tissue invasion, anesthesia, infection risk, wound healing burden, and post-operative recovery represents a significant fraction of surgical morbidity that is inherent to the method rather than the pathology being treated.
Three decades of clinical development in focused acoustic tissue intervention — extracorporeal shock wave lithotripsy, high-intensity focused ultrasound, and most recently histotripsy — have demonstrated that acoustic energy can selectively destroy targeted tissue in the body without incision, with minimal damage to surrounding structures, and without general anesthesia for an expanding range of conditions. These techniques are FDA-approved or in active clinical trials for kidney stones, uterine fibroids, prostate cancer, essential tremor, liver tumors, and cardiac arrhythmia ablation.
This paper introduces the Christos™ Acoustic Dissolution Framework — an extension of existing focused acoustic tissue intervention that adds resonant frequency selectivity, coherent field geometry programming, and real-time adaptive coherence monitoring. The framework proposes that target tissue's specific acoustic resonant signature — measurably distinct from surrounding healthy tissue — can be used to tune the intervention field for maximum effect on the target with minimum collateral involvement of surrounding structures. This is the Resonant Selectivity Principle: coherent fields find their resonant target and do not disturb non-resonant tissue.
The framework acknowledges that complete clinical validation of the proposed resonant selectivity approach remains to be established through the research program described herein. The Boundary Discrimination Index is introduced as the primary quantitative measure of selectivity performance, providing a falsifiable metric for validating the core claim.