Echocardiography Combined with Flash CT in Diagnosis of Partial Anomalous Pulmonary Venous Connection
10.3969/j.issn.1005-5185.2015.05.004
- VernacularTitle:超声心动图结合Flash CT对部分性肺静脉畸形引流的诊断价值
- Author:
Ling WANG
;
Yonggao ZHANG
;
Shaohua HUA
- Publication Type:Journal Article
- Keywords:
Anomalous pulmonary venous;
Drainage;
Echocardiography,Doppler,color;
Tomography,X-ray computed
- From:
Chinese Journal of Medical Imaging
2015;(5):334-338
- CountryChina
- Language:Chinese
-
Abstract:
PurposeTo investigate clinical significance of echocardiography combined with Flash CT in diagnosis of partial anomalous pulmonary venous connection (PAPVC). Materials and Methods Twenty-eight cases of PAPVC were recruited in the study. All the subjects underwent both preoperative echocardiography and coarse pitch Flash CT scanning. Imaging findings were compared with the results of surgery, including the type of PAPVC, size of atrial septal defect (ASD), and other combined malformations. Results Among 28 patients, 16 cases and 5 suspicious cases (4 cases of PAPVC and 1 case of pulmonary vein embolism) were diagnosed by echocardiography. Six cases were missed, and 1 case was misdiagnosed. CT misdiagnosed 1 case. The accurate diagnosis rate of echocardiography (71.4%, 20/28) was lower than that of Flash CT (96.4%, 27/28) (P<0.05). There were 44 combined malformations in 28 cases, 43 lesions were diagnosed by echocardiography, and 34 lesions were diagnosed by Flash CT. The accurate diagnosis rate of echocardiography (97.7%, 43/44) was higher than that of Flash CT (77.3%, 34/44) (P<0.05). The average DLP was (15.5±3.2) mGy·cm and average effective dose (ED) was (0.354±0.058) mSv.Conclusion Flash CT has a higher diagnosis accuracy of PAPVC but a lower diagnostic accuracy of combined malformations when compared with echocardiography. Moreover, echocardiography can make comprehensive evaluation in valve disease, pulmonary artery pressure and cardiac function. Flash CT combined with echocardiography may improve preoperative diagnosis.
