Background/Objective: A well-functioning arteriovenous fistula (AVF) is essential for the maintenance of hemodialysis in patients with chronic renal failure. The most common reason of fistula failure is thrombosis caused by stenosis. Color Doppler ultrasonography has proven to be effective in the assessment of anatomical vascular features. The majority of studies were done in patients with clinically presumed AVF complications. However, only limited data are available about the well-functioning mature arteriovenous fistulas. The present study was to evaluate completely asymptomatic AVFs with Color Doppler ultrasound.Patients and Methods: In an analytic-descriptive cross-sectional study, 50 patients with clinically well-functioning AVFs were evaluated during a 14-month period in Tabriz Imam Khomeini Hospital. The AVFs were assessed by Color Doppler ultrasound and the flow parameters and probable associated complications were investigated. Results: Fifty patients, 30 men and 20 women with a mean age of 51.58±20.27 (16-84) years were recruited. The mean duration of hemodialysis was 47.88±36.61 (2-18) months. The mean flow volume was 1009.76±561.84 ml/min. The mean resistive index was 0.51±0.08 in the studied population. The mean pulsative index was 0.89±0.16 with a mean peak systolic velocity of 87.90±33.65 cm/s and an average mean diastolic velocity of 56.28±18.36 cm/s. Aneurysm, stricture or hematoma was present in 4% of the studied AVFs. Accordingly, the overall presence rate of any complication was 12% in the AVFs.Conclusion: Based on our results, Color Doppler ultrasound may be used for evaluationof AVFs in hemodialysis patients. The rate of occult complications in apparently normal-functioning AVFs is considerable and routine screening schedules might be helpful.

Background: To explore the application of contrast-enhanced ultrasound and Color Doppler ultrasonography in the treatment of primary hepatocellular carcinoma (PHC) after Transhepatic Artery Chemoembolization (TACE). Materials and Methods: 49 patients with primary hepatocellular carcinoma were treated with TACE for 3-5 times. Before and after treatment, digital subtraction angiography, contrast-enhanced ultrasound and Color Doppler ultrasound were performed. The lesions before and after contrast-enhanced ultrasonography and Color Doppler ultrasonography were compared. The residual or recurrence and swelling of lesions before and after contrast-enhanced ultrasonography and Color Doppler ultrasonography were analyzed. Detection of the capsule of the lesion. Results: The detection accuracy of contrastenhanced ultrasound (95. 77%) was significantly higher than that of Color Doppler ultrasound (84. 51%) (P<0. 05). The detection rate of tumor envelope by contrastenhanced ultrasound (22. 54%) was significantly higher than that by Color Doppler ultrasound (9. 86%) (P < 0. 05). The accuracy of detecting residual or recurrent lesions by contrast-enhanced ultrasound (91. 67%) was significantly higher than that by Color Doppler ultrasound (58. 33%) (P<0. 05). Conclusion: The rate of bone metabolism of perimenopausal women in Xuzhou is not optimistic. We need to pay close attention to the risk of bone metabolism disorder of perimenopausal women with older age, diabetes mellitus and osteoporosis, so as to provide useful help for improving the quality of life of perimenopausal women in Xuzhou.

Background: To determine the relationship between Color and spectral Doppler features of breast cancers and their biomarkers. Methods: From January 2017 to January 2018, 43 patients with breast cancer were enrolled. Age, the existence of Color flow in the Doppler ultrasound, Color flow pattern, tumor size, and immunohistochemistry (IHC) subtypes were recorded. Results: Among 43 breast cancer patients, IHC profiles showed that 36 patients were estrogen receptor (ER) positive, 30 patients were progesterone receptor (PR) positive, and 12 patients were human epidermal growth factor receptor 2 (Her-2) positive. The prevalence of biomarker groups in this study were as follows: luminal A, 21 patients (48. 83%); luminal B, 15 (34. 88%); Her-2 amplifiers, 2 (4. 65%); and triple negative, 5 (11. 62%). Thirty-seven patients (86. 04%) with malignant masses had detectable flow and six patients (13. 95%) had no detectable flow. The ER-positive and PR-positive breast cancers had the highest vascular presence rate in Color Doppler ultrasound, but it was not statistically significant. Maximum vessel diameter in the difference biomarker groups and Doppler Color patterns with various biomarkers showed no significant the differences. Conclusion: Based on the results of this article, we could not predict the breast cancer biomarker groups using available Color Doppler features and indexes, so pathology with IHC is still required.

Color Doppler ultrasound-guided regional block like brachial plexus block lately changed other anesthesia and analgesia practice because of the accuracy and simplicity of practice to view the anatomy of blood vessels and nerves. With Color Doppler ultrasound-guided regional block you can follow needle track to nerves and prevent any vessel puncture. It can be the standard for any regional block. The patient was a 64 years Iranian who had diabetes mellitus and hypertension and planned as an urgent right upper limb amputation surgery. Because of the acute exacerbation of COPD due to pneumonia we decided to use regional anesthesia for this patient. On the first physical examination there was no peripheral pulse in patient’ s right hand. With ultra-sonographic Color Doppler the pulselessness of right hand artery were monitored. With the anatomic and awareness of grey-scaled ultrasonography the nerves and vessels were found. Axillary brachial plexus block with guidance of grey-scaled ultrasonography were done and the surgery was successfully performed and patient transferred to ICU for post operation care after surgery.