• 대한영상의학회지
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• 제83권1호
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• pp.184-188
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• 2022

지속성 원시 삼차신경동맥은 퇴화하지 않고 남아있는 내경동맥-기저추골동맥 문합이다. 변형 지속성 원시 삼차신경동맥은 드문 비정상적인 문합으로, 내경동맥과 기저동맥의 연결 없이 내경동맥에서 직접 혈관이 분지 되어 소뇌 동맥의 영역에 혈액을 공급한다. 본 연구진들은 그중에서도 변형 지속성 원시 삼차신경동맥이 동측의 상소뇌동맥 영역에 직접 혈액을 공급하는 특히 드문 증례를 발견하였다. 시행된 전산화단층촬영 혈관조영술, 디지털감산 혈관 조영술, 자기공명 혈관조영술 사진을 이용하여 이를 보고하고자 한다. 추가적으로 본 연구진들은 지속성 원시 삼차신경동맥과 변형 지속성 원시 삼차신경동맥의 발생학과 임상적 의미에 대하여 검토하였다.

• Archives of Reconstructive Microsurgery
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• 제18권2호
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• pp.79-83
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• 2009

Purpose: Avulsion injuries of digits have been presented for a long time as complex management problems. Despite of microsurgical advances, it is difficult to achieve good functional results and their management remains somewhat controversial. However, in a finger there are three transverse digital palmar arches. The middle and distal transverse digital palmar arches are consistently large(almost 1 mm) and may be used for arterial vessel repairs either proximally or distally, depending on the length and direction needed. 39-year-old man presented with avulsion amputation of the ulnar three digits, was operated using only arterial anastomosis with rerouting the transverse digital palmar arches. Methods: Replantation was performed using the artery-only technique. Because the digital arteries had been damaged, we did that the transverse digital palmar arches were transposed in an inverted Y to I configuration and were lengthened with rerouting them for the purpose of direct anastomosis of the digital artery. Venous drainage was provided by an external bleeding method with partial nail excision and external heparin irrigation. Results: The authors conclude that complete avulsion amputations with only soft tissue at the distal to insertion of the flexor digitorum superficialis tendon were salvageable with acceptable functional results. All three fingers survived. Conclusion: With technical advancements, the transverse digital palmar arches play an important role for finger amputation. Three digital palmar arches give us additional treatment option for the finger amputation. In this case, replantation with only-arterial anastomosis was successful and we obtained good aesthetic and functional outcome.

• Journal of Korean Neurosurgical Society
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• 제54권3호
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• pp.236-238
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• 2013

Rapidly developed de novo aneurysm is very rare. We present a rapidly developed and ruptured de novo anterior communicating aneurysm 8 days after the rupture of another aneurysm. This de novo aneurysm was not apparent in the initial 3-dimensional computed tomography and digital subtraction angiography. We reviewed the literature and discussed possible mechanisms for the development of this de novo aneurysm.

• 디지털융복합연구
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• 제15권5호
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• pp.391-400
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• 2017

본 연구는 스마트폰 동영상 교육프로그램이 관상동맥질환자의 질병관련지식과 불안에 미치는 효과를 파악하기 위한 비동등성 대조군 사전-사후 설계를 이용한 유사실험연구이다. 대상자는 대학부속병원에 관상동맥질환으로 입원한 환자로 실험군 28명, 대조군 30명 총 58명이었다. 실험처치는 본 연구자가 개발한 스마트폰 동영상 교육프로그램으로 입원 중에 개별화된 교육을 실시하였다. 실험처치의 효과를 확인하기 위해 실험 전, 후 구조화된 설문지를 이용하여 실험군과 대조군의 질병관련지식과 불안 정도를 측정하고 비교하였다. 연구 결과 실험군의 질병관련지식은 대조군에 비해 유의하게 높았으나, 불안은 유의한 차이가 없었다. 결론적으로 스마트폰 동영상 교육프로그램은 대상자의 질병관련지식 향상에 도움이 되었으나, 심리적 요인에 대한 중재 효과는 나타나지 않았다. 따라서 향후 관상동맥질환자를 위한 중재 프로그램 개발 시 심리적 요인에 대한 중재방안을 동시에 적용할 수 있도록 하는 방안이 필요하다.

• Journal of Chest Surgery
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• 제30권1호
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• pp.108-111
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• 1997

독립적으로 발생하는 일측 폐동맥의 선천성 형성부전증은 매우 드문 기형이며 대부분 활로씨 4징과 같은 심장기형과 동반하여 발생한다. 동반된 선천성 심기형이라 폐감염이 없는 경우 대부분의 환자에서 증상이 없기 때문에 일차적 인 진단은 흉부방사선 촬영상에서 특징적인 양상을 보이는 것으로써 이루어진다 흉부 단순 촬영상 심장과 종격동이 병변측으로 전위되고, 병변측 폐동맥 음영이 보이지 않으며 흉곽의 크기가 정상측에 비하여 작고 횡격막이 거상된 양상을 보인다. 최근 저자들은 다량의 객혈을 주소로 내원한 48세 남자환자에서 우측폐동맥 형성부전증을 폐관류 스캔과 전산화 감골처리 폐동맥 조영술로 진단하고 우중·하엽절제술을 통하여 치료하였기에 문헌고찰과 함께 보고하는 바이다.

• 대한디지털의료영상학회논문지
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• 제13권1호
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• pp.39-48
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• 2011

Uses a Tomographic scan image and Table Object Distance(TOD) price after measuring, uses accuracy and usability of blood vessel diameter(Vessel Diameter) measurement under comparison evaluating boil TOD Calibration. The patient who enforces Prosecuting Attorney abdomen Tomographic scan in the object the superior mesentery artery uses PACS View from abdomen fault image and from blood vessel diameter and the table measures the height until of the blood vessel. Uses Angio Catheter from Angiography(5 Fr.) and enforces is measured from PACS View the height until of the table which and the blood vessel at TOD Calibration price and the size of the superior mesentery artery inputs measures an superior mesentery artery building skill. Catheter Calibration input Agnio Catheter where uses in Angiography the size of the superior mesentery artery at Catheter Calibration price and they measure. Produced an accuracy from monitoring data and comparison evaluated. The statistical program used SPSS. TOD Calibration accuracy was 96.53%, standard deviation is 0.03829. Catheter Calibration accuracy of 92.91%, standard deviation is 0.05085. Represents a statistically significant difference(p = 0). According to age and gender was not statistically significant(p > 0.05). TOD Calibration correlation coefficient R-squared of 88.8%, Catheter Calibration of the R-squared is 75.5%. High accuracy of both methods. Through this study, CT images using the measured distance between the table and the Object, TOD Calibration accuracy higher than two Catheter Calibration was measured. TOD and Catheter Calibration represents a statistically significant difference(p = 0).

• Archives of Plastic Surgery
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• 제34권6호
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• pp.796-798
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• 2007

Purpose: Giant cell tumor is the second most common benign neoplasm in upper extremity. Unlike usual chief complaint of painless mass, an atypical case with giant cell tumor presented a distinguishing characteristics of which accompany pain and tenderness and is histologically giant-cell free. Methods: A 31-year-old male patient complained of a rapid growing painful mass on the proximal phalanx of the left ring finger. Under microscopic operation, a $1.6{\times}1.3cm$ sized mass was found to be surrounded by areolar tissue and attached to a tendon sheath, encircling the digital nerve and artery. Diagnostic confirmation was assisted by positive finding in histologic immunohistochemical stain-CD68. Characteristic pathologic finding is an atypical distribution of spindle cells & histiocytes without giant cells in fascicular pattern. Results: Giant cell tumor was carefully removed under microscopic approach, while preserving digital nerve & artery. In postoperative 13th month, the patient presented with a 6mm of static two-point discrimination test, similar to that of the adjacent fingers. Conclusion: We report an atypical case with painful mass on tendon sheath, surrounding the digital nerve and artery that was diagnosed of giant cell tumor, but without giant cells on pathology. This case provides broader understanding of the giant cell tumor that should not only rely its typical findings of the painless mass and positive sign on H&E stain.

• 한국정보과학회논문지:소프트웨어및응용
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• 제30권12호
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• pp.1247-1254
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• 2003

현재 경동맥 내막절제술 시행을 위한 경동맥 협착증의 정도 측정에는 디지털감산조영술(DSA), 회전조영술(rotational angiography), 컴퓨터단층조영술(CTA) 및 자기공명조영술(MRA)로부터 얻어진 경동맥의 투영 영상을 이용하여 북미, 유럽 표준 및 총경동맥 방법이 사용되고 있다. 본 논문에서는 기존의 기계적인 측경기를 이용하는 전형적인 경동맥 협착 측정 방법의 단점을 극복하고, 측정자간의 변화율을 최소화하기 위해 자기공명조영술의 단면 영상을 사용하고 컴퓨터화한 새로운 협착증 정도 측정 방법을 개발하였다. 영상 분할에 사용되는 방법중 가장 널리 사용되고 효율적인 명암값 임계치 방법을 사용하여 경동맥 및 동맥의 내강을 분할하였다. 또한, 각 증례의 측정된 총경동맥의 혈관두께를 사용하여 분할된 경동맥으로부터 혈관을 제거 하였고, 혈관이 제거된 경동맥을 혈류 영역과 플라그 영역으로 분할하였다. 각 단면 영상에서의 경동맥 협착증 정도 측정은 (분할된 플라그 영역/혈류영역 및 플라그를 합한 면적) * 100% 식으로 계산된다.

• Archives of Reconstructive Microsurgery
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• 제22권2호
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• pp.63-68
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• 2013

Purpose: In case of the failed replantation, if the patients want to preserve the length of amputated stump, toe transfer is the ideal choice. However, reconstruction of these amputated stump with a free flap can be a useful method when the patients refuse sacrificing their toe. Our purpose of this study is to evaluate availability of functional results and patient satisfaction after this procedure. Materials and Methods: From March 2008 to February 2012, we reconstructed the amputated stump with free flap by patients demand. Eleven patients were included, medial plantar artery perforator flap in seven cases and great toe pulp flap in five cases. Follow-up range 12 to 24 months and we evaluate patient satisfaction by using a visual analogue scale (VAS; 1=unsatisfied, 5=excellent) and functional recovery by measuring the range of motion of remaining joint at 12 months after operation. Results: During follow-up period, all transferred free flaps survived and no major complications were noted. Range of motion of remaining joint appeared satisfactory result ($15^{\circ}$ to $100^{\circ}$). The VAS patient satisfaction score for aesthetic were five in six patients, four in four patients, and three in one patient. Conclusion: In case of the failed digital replantation, if patient refuse toe transfer, it could be useful method to reconstruction with the free flap to preserving maximal length of amputated stump.

• Journal of Korean Neurosurgical Society
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• 제38권5호
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• pp.396-398
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• 2005

We report a rare case of scalp arteriovenous malformation[AVM]. A 55-year-old woman presented with a pulsatile palpable mass on her left temporo-parietal scalp. She complained of insomnia because of bruit, which was audible when she lay on her left side. Computed tomography angiography[CTA] for the scalp vessel showed AVM on the left temporo-parietal region. Multiple enlarged arteries, such as the superficial temporal artery, posterior auricular artery, and occipital artery, were directly connected to the elongated dilated superficial temporal vein. Digital subtraction angiography also showed similar results. Fistulous portions were clearly delineated on both modalities. Surgical excision of the malformations, including feeding arteries and the draining vein, resulted in immediate relief of the symptoms. Usefulness of CTA in the diagnosis of vascular lesions on the scalp was emphasized.