Transrectal contrast-enhanced ultrasound and color Doppler ultrasound in the differential diagnosis of rectal cancer and rectal stromal tumor[J]. Journal of Clinical Ultrasound in Medicine, 2020,22(12).
Transrectal contrast-enhanced ultrasound and color Doppler ultrasound in the differential diagnosis of rectal cancer and rectal stromal tumor[J]. Journal of Clinical Ultrasound in Medicine, 2020,22(12).DOI:
Objective: To explore the role of transrectal contrast-enhanced ultrasound and color Doppler ultrasound in the differential diagnosis of rectal cancer and rectal stromal tumor. Methods: A retrospective analysis was made of the medical records of 82 patients with rectal cancer who were treated in our hospital from January 2017 to January 2020. According to the results of postoperative histopathological examination
they were divided into two groups: the rectal cancer group (53 cases) and the rectal stromal tumor group (29 cases). The maximum diameter
peak blood flow velocity
resistance index
ultrasonographic characteristics
IMAX
RT
TTP and MTT of the two groups were compared
and the coincidence rate of differential diagnosis between rectal cancer and rectal stromal tumor was also compared. Results: The mean maximum diameter
peak flow velocity and resistance index of rectal cancer group were significantly higher than those of rectal stromal tumor group (P < 0.05). In CDUS features
the internal echo of rectal cancer was more uniform than that of rectal stromal tumor
and most of the lesions surrounded the intestinal cavity
the difference was statistically significant (P < 0.05). The IMAX value of CEUS in rectal cancer group was higher than that in rectal stromal tumor group
and the RT value
TTP value and MTT value of CEUS were significantly lower than those in rectal stromal tumor group (P < 0.05). The accuracy rate of CEUS was 98.11% (52 / 53)
93.101% (27 / 29)
96.34% (79 / 82)
86.79% (46 / 53)
89.66% (26 / 29) and 87.80% (72 / 82)
respectively The total coincidence rate of different diagnosis of rectal cancer and rectal stromal tumor was significantly higher than that of CDUS (P < 0.05). Conclusion:Transrectal CEUS and CDUS play a higher role in the differential diagnosis of rectal cancer and rectal stromal tumor