Objective:

To study the clinical value of superb microvascular imaging (SMI) and contrast-enhanced ultrasound (CEUS) in the diagnosis of bladder occupied lesions.

Methods:

A total of 25 cases with bladder occupied lesions found by conventional ultrasound were examined by color Doppler flow imaging (CDFI)

SMI and CEUS. The differences in displaying blood flow of bladder occupied lesions among the three methods were analyzed

and the perfusion

pattern of CEUS was investigated.

Results:

Among 36 bladder occupied lesions

31 were malignant

2 were inverted papilloma of the bladder

and 3 were glandular cystitis. The blood flow displaying rates of SMI and CEUS were 100%

which were significantly higher than that of CDFI (69.4%) (

P

0.05). Thirty-five malignant lesions were diagnosed by CEUS

showing fast enhancement

delayed washout and hyperenhancement. One glandular cystitis case showed slow enhancement

isochronous washout and iso-enhancement. The diagnostic accuracy of CEUS was 88.9%.

Conclusion:

Both SMI and CEUS can increase the displaying rate of blood flow of bladder occupied lesions. CEUS can real-time display the blood flow

which is helpful in differential diagnosis of benign bladder occupied lesions frommalignant ones.