2. Treatment of esophageal cancer and identification of radiation-induced heart disease.

Case	Treatment of esophageal cancer	ECG/DCG	UCG	CTA/CAG	NT-proBNP, pg/mL
AF: atrial fibrillation; AP: atrial premature; AVB: atrioventricular block; BTS: bradycardia-tachycardia syndromome; CAG: coronary angiography; CTA: CT angiography; DCG: dynamic electrocardiogram; ECG: electrocardiogram; F: fractions; GTV: gross tumor volume; IMRT: intensity modulated radiotherapy; LA: left atrium; LADm: the middle segment of the left anterior descending artery; LCXp: the proximal segment of the left circumflex branch; LVEF: left ventricular ejection fraction; NT-proBNP: N-terminal pro B-type natriuretic peptide; PC: pericardial calcification; PE: pericardial effusion; PTV: planning target volume; RCAp: the proximal segment of the right coronary artery; RT: radiation therapy; SSS: sick sinus syndrome; UCG: ultrasonic echocardiography; VHD: valvular heart disease.
1	Traditional RT 60 Gy, 10 weeks, surgery	Persistent AF	Mild VHD, LA 45 mm, Mild PE	70% stenosis in LADm	1,225
2	Traditional RT 60 Gy, 10 weeks, surgery	SSS, Persistent AF	Mild VHD, LVEF 40%, Mile PE	Occlusion in RCAp	1,520
3	Traditional RT 60 Gy, 12 weeks, surgery	Third-degree AVB	Mild VHD, Moderate PE and PC	90% stenosis in LCXp	719
4	IMRT: PTV 59.64 Gy/28 F, 5 weeks, surgery	Sinus bradycardia, Persistent AF, BTS	Mild PE	85% stenosis in LADm	1,084
5	IMRT: GTV 60 Gy/28 F, 5 weeks, concurrent chemotherapy	AP prior to RT, Persistent AF post-RT	Mild PE	70% stenosis in LADm	4,962