Objective To investigate the clinical value of the gated blood pool imaging phase analysis method in the evaluation of left ventricular mechanical synchronization in patients with chronic heart failure. Methods A total of 169 patients with chronic heart failure were enrolled in our study , using gated blood pool imaging phase analysis method to obtain left ventricular phase angle width ( PHB) and left ventricular phase angle standard deviation ( PSD) as evaluating left ventricular mechanical synchrony index; using tissue Doppler imaging (TDI) measurement of the standard deviation of systolic peak time(Ts-SD) of each segment by using the current prevailing 12 non-apical segments analysis method as evaluating left ventricular mechanical synchrony index, and parameters derived from both methods were compared. Results LVPHB was highly correlated with Ts-SD (r = 0. 83 ,P = 0. 000 ) . LVPSD was modestly correlated with Ts-SD ( r - 0. 69, P = 0. 000) . The ejection fraction measured by echocardiography was (42.93 ± 14. 89) % ,which was significantly higher than that measured by ERNA (39. 76 ± 17. 89)% (P <0. 01). Conclusions The evaluation of left ventricular mechanical synchrony in patients with chronic heart failure by the gated blood pool imaging can provide similar information with TDI, which can simultaneously measure two ventricular functions and get more accurate measurement of ejection fraction. Cardiac resynchronization therapy patients can be identified by combining two kinds of approaches, and cardiac resynchronization therapy responders could be improved as well. More patients with heart failure can benefit from cardiac resynchronization therapy therapy.

Objective:To investigate the diagnosis and treatment of gastrointestinal fistula after radical gastrectomy .Methods:The clinical data of 15 patients ,who underwent radical gastrectomy and suffered post‐surgery gastrointestinal fistula at Depart‐ment of Gastric Cancer and Soft Tissue Sarcoma ,Shanghai Cancer Center ,Fudan University from Jan 2013 to Dec 2014 ,were retrospectively analyzed .Results:Four of the fifteen patients received reoperative procedures for peritoneal drainage .And the other 11 patients were cured after B ultrasound or CT imaging guided percutaneous catheter drainage and treatments such as fasting ,gastrointestinal decompression ,and enteral nutrition via needle catheter jejunostomy .No patient died .There was no statistically significant difference regarding length of hospital stay ,leukocytes abnormal days in peripheral blood and fever days after the diagnosis of gastrointestinal fistula between the reoperation group and the non‐reoperation group(P>0 .05) .Conclu‐sions:Early diagnosis ,as well as adequate and effective drainage is the key to cure for gastrointestinal fistula after radical gas‐trectomy .If operation indication is properly managed and nonsurgical treatment such as percutaneous catheter drainage is effec‐tive ,then reoperation can be avoided .