• Imaging Science in Dentistry
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• 제49권4호
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• pp.301-306
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• 2019

Purpose: This report presents a procedure for performing power Doppler ultrasound-guided sialography using the phenomenon of increased blood flow and illustrates its application to practical patient cases. Materials and Methods: The salivary gland was scanned using ultrasound equipment (GE LOGIQ5 Expert^® device; GE Medical Systems, Milwaukee, WI, USA) to identify pathological findings related to the patient's chief complaint. To identify the orifice of the main duct, it should be cannulated using a lacrimal dilator. After inserting the catheter into the cannulated main duct, the position of the catheter within the duct was confirmed by ultrasound. A contrast agent was injected until the patient felt fullness, and ultrasound (B-mode) was used to confirm whether the contrast agent filled the main canal and secondary and tertiary ducts. Then, power Doppler ultrasound was performed to determine whether the salivary gland had increased blood flow. Results: In 2 cases in this report, a power Doppler ultrasound scan showed a significant increase in blood flow after contrast medium injection, which was not observed on a preoperative scan. Conclusion: Power Doppler ultrasound was found to be a simple, safe, and effective tool for real-time sialography monitoring.

• Clinics in Shoulder and Elbow
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• 제20권2호
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• pp.84-89
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• 2017

Background: Common and effective treatments for calcific tendinitis involve needling procedures. However, it has been widespread practice to refer patients with calcific tendinitis, which is a predominantly orthopedic condition, to radiology department. The purpose of this study was to compare clinical and radiological outcomes after ultrasound-guided needling for calcific tendinitis between the orthopedics and radiology department. Methods: Seventy-seven shoulders (Group 1) and 38 shoulders (Group 2) treated in the radiology and orthopedic department, respectively. A fellowship-trained orthopedic surgeon and a musculoskeletal radiologist each performed the procedure of ultrasound-guided needle decompression with subacromial steroid injection. Clinical outcomes was evaluated using the visual analogue scale for pain (pVAS) and the American Shoulder and Elbow Surgeons (ASES) shoulder score before treatment and at each follow-up. The pre- and postneedling size and shape of the calcific deposits were compared between the two groups. Results: We analyzed a total of 56 shoulders for Group 1 and 32 shoulders for Group 2. The mean age and sex ratio of the patients no significantly different. We found that the mean decrease in the diameter of calcification between pre- and post-needling was 9.0 mm for Group 1 and 13.1 mm for Group 2; the difference was significantly larger in Group 2 than in Group 1. Both groups showed improved pVAS and ASES scores after needling but the extent of these improvements did not differ with the type of operator. Conclusions: Needling decompression performed by orthopedic surgeons could a viable option for the treatment of calcific tendinitis.

• 대한기관식도과학회지
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• 제17권1호
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• pp.35-39
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• 2011

Objectives The high sensitivity of ultrasound and thyroglobulin determination for follow-up of differentiated thyroid cancer allows early detection of nonpalpable recurrences. Intraoperative localization of these small foci in previously dissected necks is a surgical challenge. We assessed the safety and effectiveness of ultrasound-guided tattooing (US-tattoo) with a charcoal suspension for localizing nonpalpable cervical recurrences after thyroidectomy for thyroid cancer. Subjects and Methods Between March 2009 and December 2010, we retrospectively reviewed 19 patients who underwent US-tattoo with injection of a charcoal suspension for recurrent thyroid papillary cancer on central neck compartment after thyroidectomy. All patients underwent the surgical dissection after US-tattoo. The complications and effectiveness of US-tattoo were evaluated. Results The technical success rate of US-tattoo for suspicious lesions was 100%. There was no complication with regard to US-tattoo. During surgery, all but one tattooed lesions were detected by surgeons. On final pathologic reports, all recurrence lesions but two cases were successfully removed. Conclusion Preoperative US-tattoo is a safe and effective method for successful reoperation of central neck compartment recurrences after thyroidectomy.

• 한국수정란이식학회지
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• 제26권2호
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• pp.105-109
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• 2011

Ovulation synchronization (ovsynch) has proved to increase the number of insemination in cattle by overcoming the problems of heat detection. The aim of this study was to do ovsynch in water buffaloes where heat detection is a major reproductive problem and to determine the conception rates after timed artificial insemination (TAI). Twenty cyclic buffaloes at ${\geq}$ 60 days postpartum were selected by examining 24 unobserved estrus buffaloes based on milk progesterone assay (progesterone concentration ${\geq}$ 1.0 ng/ml) from the Mymensingh district of Bangladesh. Ovsynch treatment regimen was started irrespective of the stage of estrous cycle. Gonadorelin (500 ${\mu}g$) was injected intramuscularly at Day 0 followed by Alfaprostol (8 mg) at Day 7. A second injection of Gonadorelin was given at Day 9 and TAI was done with frozen semen from Mediterranean buffalo bulls at 16~20 hours of the second Gonadorelin injection. Milk progesterone ELISA at Day 10~12 post AI confirmed ovulation in 16 out of 20 (80%) buffaloes (progesterone concentration ${\geq}$ 1.0 ng/ml). High progesterone concentration (${\geq}$ 1.0 ng/ml) at Day 10~12 and Day 22~24 of AI showed pregnancy in six out of 20 (30%) buffaloes. Pregnancy was further confirmed by ultrasonography at Day 40 in these six buffaloes. In conclusion, ovsynch followed by TAI could be applied in cyclic buffaloes for overcoming the estrus detection problems; however, more studies are needed to increase the conception rate.

• 대한정형외과 초음파학회지
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• 제5권2호
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• pp.61-65
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• 2012

목적: 족부에 발생하는 여러 질환 중 모톤씨 신경종은 종족골두 사이에서 지속적인 마찰로 인한 자극으로 발생되며 보행 시 통증과 감각이상을 호소한다. 일차적인 치료는 중족골 패드, 스테로이드 주사, 비스테로이드성 진통제를 사용하는 비수술적인 치료 방법이 권장되고 있다. 초음파의 발달로 인해 모톤씨 신경종을 진단하고 그 크기를 쉽게 확인 할 수 있으며 스테로이드도 정확한 부위에 주사할 수 있게 되었다. 이에 저자들은 초음파 영상 하의 스테로이드 주사에 대한 임상적 결과를 분석하고자 하였다 대상 및 방법: 2008년 10월부터 2011년 9월까지 임상적 및 초음파 검사 하에서 모톤씨 신경종으로 진단받은 17명(23례)을 대상으로 연구를 시행하였다. 모든 환자가 여성이었고, 평균 나이는 52.6세(36~72)이었다. 병변의 종축과 횡축의 크기를 측정하였고, 5 mg의 dexamethasone을 초음파 영상 유도 하에 신경종 주위에 주사하였다. 주사 전, 후의 자가 통증 점수(VAS pain score)를 기록하였고, 주사 후 환자의 만족도를 완쾌, 호전, 비호전, 악화로 분류 하였으며 SPSS 프로그램을 이용한 t-test를 이용하여 병변의 크기에 따른 steroid 주사의 효과를 비교 분석하였다. 결과: 1예에서 제1 중족지간에, 11예에서 제2 중족지간에 신경종이 발생하였고, 11예는 제3 중족지간에 발생하였다. 신경종의 평균 종축의 길이는 $0.8{\pm}0.4cm$, 횡축의 길이는 $0.52{\pm}0.17cm$이었다. 총 23례 중 증상의 완쾌 및 호전은 7례(30.4%)이었고 비호전 및 악화의 예는 16례(69.6%)이었다. 만족도가 완쾌 및 호전이었던 군의 신경종 종축의 평균길이는 $0.71{\pm}0.39cm$이었고 횡축의 평균 길이는 $0.47{\pm}0.24cm$이었으며, 만족도가 비호전 및 악화 이었던 군의 신경종 종축의 크기는 $0.83{\pm}0.42cm$, 횡축의 길이는 $0.54{\pm}0.14cm$이었다. 종축의 길이가 5 mm 미만, 횡축의 크기가 4 mm 미만인 신경종 군에서 주사 후 자가 통증 점수와 만족도가 종축이 5 mm, 횡축이 4 mm이상인 신경종보다 통계학적으로 의미 있게 임상 결과가 좋은 것으로 분석되었다(p<0.05). 결론: 모톤씨 신경종에서 초음파 영상은 진단 및 치료에 중요한 영상기법으로 생각되며 신경종의 횡축 길이가 0.5 cm, 종축 길이가 0.4 cm 미만인 경우에는 스테로이드 주사가 효과적인 것으로 사료된다.