title: Color Doppler twinkling artifacts from gallbladder adenomyomatosis with 1.8 MHz and 4.0 MHz color Doppler frequencies.
abstract: The purpose of this study was to investigate the diagnostic value of color Doppler twinkling artifacts (CDTAs) in the evaluation of gallbladder adenomyomatosis with differently colored Doppler frequencies. An ultrasound was performed by an experienced radiologist in 17 patients with typical gallbladder adenomyomatosis. Two abdominal radiologists retrospectively evaluated the anatomic locations, the intensity of 69 CDTAs on 1.8 MHz and 4.0 MHz Doppler frequencies, and the intensity of the corresponding comet-tail artifacts. Statistical analysis was performed using the Friedman and Kruskal-Wallis test. The intensity of the CDTAs was significantly greater than that of the comet-tail artifacts, regardless of the color Doppler frequency and anatomic location (p < 0.001). The intensity of the CDTAs on 1.8 MHz was significantly higher than that on 4.0 MHz color Doppler frequency (p < 0.05). In conclusion, CDTAs may be useful in recognizing gallbladder adenomyomatosis, and 1.8 MHz color Doppler frequency is more highly recommended than 4.0 MHz for the visualization of CDTAs.
authors.affiliation: Department of Radiology and the Institute of Radiation Medicine, Seoul National University Hospital, Seoul, Korea.
authors.forename: Mi Hye
authors.initials: MH
authors.lastname: Yu
authors.forename: Jae Young
authors.initials: JY
authors.lastname: Lee
authors.forename: Jeong-Hee
authors.initials: JH
authors.lastname: Yoon
authors.forename: Jee Hyun
authors.initials: JH
authors.lastname: Baek
authors.forename: Joon Koo
authors.initials: JK
authors.lastname: Han
authors.forename: Byung-Ihn
authors.initials: BI
authors.lastname: Choi
mesh_terms: D018194:Adenomyoma / Q000000981:diagnostic imaging*; D000328:Adult; D000368:Aged; D016477:Artifacts; D005260:Female; D005706:Gallbladder Neoplasms / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D018615:Ultrasonography, Doppler, Color / Q000379:methods*; D055815:Young Adult