Pericardial calcification in tuberculous constrictive pericarditis: a marker of chronicity unassociated with early postoperative outcomes - Zhao, Zhengkai; Cai, Qiuyi; Guo, Jing; Yan, Shuangshuang; Wang, Shuzhen; Zhang, Lijuan; Zhang, Li; Xiao, Qiuyu; Tan, Kunyue; Xiong, Feng (Quantitative Imaging in Medicine and Surgery, 2026)