Cardiac dose patterns and early ECG changes differed by breast cancer laterality
Left-sided breast IMRT was linked to more repolarization changes, while right-sided treatment produced predominantly rhythm abnormalities.
Left-sided breast IMRT was linked to more repolarization changes, while right-sided treatment produced predominantly rhythm abnormalities.
Heart-base-optimized IMRT/VMAT reduced cardiac avoidance area mean dose by about 6 Gy without compromising target coverage.
Higher sinoatrial node low-dose exposure independently tracked with new ECG abnormalities after postoperative breast IMRT in this exploratory retrospective cohort.
Personalized Bayesian heart-dose limits improved identification of NSCLC patients at low risk of treatment-related cardiac troponin elevation.
Despite a mean whole-heart dose below 9 Gy, eleven cardiac substructures averaged above 10 Gy, and targeted replanning substantially reduced coronary exposure.
Reported atrial fibrillation occurred in 7.6% after thoracic radiotherapy when cohorts with substantial perioperative confounding were excluded.
Maximum cardiac avoidance area dose below 43.5 Gy was associated with longer median survival after curative-intent oesophageal radiotherapy.
Cardiovascular events occurred in 59% after definitive lung chemoradiotherapy, while higher heart V20 and V30 independently tracked with greater event risk.
Skeletal muscle loss and substantial left ventricular mass changes on follow-up imaging were strongly associated with poorer survival after curative radiotherapy.
Automated LAD contours reproduced the association between coronary dose and survival in 460 stage III NSCLC patients, although performance varied by model.
The model calibrated well only when non-cancer death was defined consistently; an overall-survival version validated in both external cohorts.
Planning-CT calcification and age predicted atherosclerotic events, while anthracyclines and respiratory toxicity predicted other cardiac complications.
Automatically predicted coronary habitats captured most arteries and enabled substantial dose reductions in three retrospectively replanned thoracic cases.
Symptomatic grade ≥2 cardiac toxicity occurred in 8% after central or ultracentral lung SBRT, typically developing more than one year after treatment.
A maximum left anterior descending coronary artery dose of at least 12 Gy was independently associated with higher long-term cardiac risk.