• 대한두개안면성형외과학회지
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• 제13권1호
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• pp.41-45
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• 2012

Purpose: Fibular osteocutaneous free flap is the procedure of choice for mandibular reconstruction. However, the anatomic consistency and the reliability of the skin paddle have been considered to be questionable and the utilization of the fibular osteocutaneous free flap can be challenging for the inexperienced surgeon. Preoperative computed tomography (CT) angiography can support revolutionary help with the operator design of the fibular osteocutaneous flap. The purpose of this article is to share the valuable experience of support with preoperative CT angiography. Methods: Three consecutive patients, who needed mandibular reconstruction, were treated with fibular osteocutaneous free flap. Each of the patients had undergone lower extremity CT angiography before the surgery. The CT angiographies were scrupulously investigated to calculate the locations and the tracts of the peroneal artery perforators. We compared the findings of the CT angiography with those of the real operation. Results: The information about the perforators was sufficiently matched with the findings of the operation. With the use of preoperative CT angiography, we were able to achieve confident performance during operation, shortening of operation time, and fine outcomes with a no flap failure. Conclusion: The CT angiography of lower extremity can provide reliable information of the perforators of the fibular osteocutaneous free flap.

• Archives of Reconstructive Microsurgery
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• 제21권1호
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• pp.8-13
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• 2012

Purpose: Purpose: The free deep inferior epigastric artery perforator (DIEP) flap is a popular option for autologous breast reconstruction. However, the anatomy of the deep inferior epigastric artery(DIEA) may vary from one individual to another. Unexpected vascular anomaly can confuse the surgeon and affects on the safety of the free DIEP flap. Materials and Methods: Thirty five consecutive patients who underwent free DIEP/TRAM flap for immediate breast reconstruction between Mar. 2010 and Oct. 2010 were enrolled in this study. Computed tomography angiography (CT angiography) of abdomen was evaluated part of our standard preoperative assessment: atypical patterns of DIEA/DIEP were evaluated by preoperative CT angiography and compared with intraoperative finding. Results: Atypical patterns of DIEA/DIEP which may affect preoperative planning were noted as the following: Circummusclar/subfascial DIEA (n=1), DIEA running underneath rectus muscle (n=8), septocutaneous perforator (n=3), peritoneo-cutaneous perforator (n=1), a large branch going into peritoneum (n=1), and very early division and muscle penetration of DIEA (n=1). Conclusion: Atypical DIEA/DIEP that might change the operation plan is not rare, so the individualized planning based on the preoperative CT angiography is recommended. Preoperative CT angiography could help to select reliable and easy-to-dissect perforator in free DIEP/TRAM breast reconstruction.

• Archives of Plastic Surgery
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• 제33권2호
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• pp.175-180
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• 2006

Preoperative angiography is frequently used in the planning of microsurgical reconstruction for identification of vascular abnormality that influence the planning of operation. But, recently 3D CT angiography is considered as new technique that can provide detailed information about vascular anatomy as well as soft and bony tissue without the risks of invasive angiography. 3D CT angiograms were performed in 19 patients before microsurgical reconstruction for the lower extremity and hand between May of 2003 and Oct of 2004. Sixteen of the studies were of the donor site and all of 19 studies were of the recipient site. No complications were found from the 3D CT angiograms. In one case of the bone exposed open wound, the injury of anterior tibial artery was identified and the zone of injury was adequately demonstrated. With the improvement in quality of CT imaging, 3D CT angiograms may provide a favorable alternative to invasive angiography. It is capable of providing high-resolution, three dimensional vascular imaging without the need for arterial puncture and prolonged post-procedure observation. The relation among blood vessels, bones, and soft tissue is well demonstrated in 3D CT angiogram. Also The acquisition time and examination cost were considerably lower in comparison with invasive angiography. In conclusion, this study demonstrates that 3D CT angiography may provide accurate, safe, and cost-effective preoperative imaging. The 3D CT angiography with relatively low morbidity, low cost, ease of image acquisition can have an broader role in microsurgical reconstructive surgery.

• Archives of Plastic Surgery
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• 제46권6호
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• pp.599-602
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• 2019

We report a case of autologous breast reconstruction in which a thoracodorsal vessel was used as a recipient vessel after a hypoplastic internal mammary vessel was found on preoperative computed tomography (CT) angiography. A 46-year-old woman with no underlying disease was scheduled to undergo skin-sparing mastectomy and breast reconstruction using a deep inferior epigastric artery perforator flap. Preoperative CT angiography showed segmental occlusion of the right subclavian artery with severe atherosclerosis and calcification near the origin of the internal mammary artery, with distal flow maintained by collateral branches. The thoracodorsal artery was selected to be the recipient vessel because CT showed that it was of adequate size and was not affected by atherosclerosis. The patient experienced no postoperative complications, and the flap survived with no vascular complications. The breasts were symmetrical at a 6-month follow-up. This case highlights that preoperative vascular imaging modalities may help surgeons avoid using diseased vessels as recipient vessels in free flap breast reconstructions.

• Archives of Plastic Surgery
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• 제42권1호
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• pp.78-83
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• 2015

In perforator flap reconstruction, vascular mapping using preoperative computed tomography (CT) angiography is widely used to confirm the existence and location of an appropriate perforator. This study proposes a rapid, accurate, and convenient method for marking the perforator location on the skin surface. For 12 patients who underwent perforator flap reconstruction between November 2011 and November 2013, metal clips were fixed on the skin surface at the anticipated perforator locations, which were decided using a handheld Doppler. CT angiography was used to compare the location between the metal clip and the actual perforator. The metal clip was moved and repositioned, if needed, on the basis of the CT images. The locations of the appropriate perforator and the metal clip, which were observed during the surgery, were then compared. In CT angiography, the mean distance between the metal clip and the perforator was $3{\pm}3.9mm$, and the mean distance that was measured during surgery was $0.8{\pm}0.8mm$. In conclusion, we report a simple, rapid, and precise technique to indicate the accurate location of the appropriate perforator on the skin surface.

• Journal of International Society for Simulation Surgery
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• 제1권1호
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• pp.41-44
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• 2014

The aim of this report is showing the case that we could give exact navigation of perigastric vessels for gastrectomy with 3D CTA. A 74-year-old male patient visited hospital with gastric cancer. Early gastric cancer, type IIb was found at stomach antrum great curvature side. Before surgery, he underwent 3D CT angiography. 3D volume rendering images and MIP images were made by post processing. He had replaced Lt. hepatic artery arising from Lt. gastric artery. Surgeon could get patient's specific vascular anatomy before surgery including surgically relevant anatomical distance and direction and could finish gastrectomy within 4 hours and just 53ml blood loss.

• Journal of Korean Neurosurgical Society
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• 제53권6호
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• pp.380-382
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• 2013

We report a case of fatal duret hemorrhage (DH) in a patient with acute tentorial subdural hematoma and bilateral chronic subdural hematoma along the cerebral hemispheres. Preoperative CT angiography (CTA) revealed prominent parenchymal enhancement in the ventral pontomesencephalic area. After burr-hole drainage, a large hemorrhage developed in this area. The parenchymal enhancement in the CTA may reflect the pontomensencephalic perforating vessel injury, and may be a sign of impending DH of acute transtentorial downward herniation. Previous use of aspirin and warfarin might have potentiated the process of DH and increase the extent of the bleed.

• Imaging Science in Dentistry
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• 제42권1호
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• pp.35-39
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• 2012

A 9-year-old girl visited our hospital, complaining of a rapid-growing and rigid swelling on the left posterior mandibular area. Panoramic radiograph showed a moderately defined multilocular honeycomb appearance involving the left mandibular body. CT scan revealed an expansile, multilocular osteolytic lesion and multiple fluid levels within cystic spaces. Bone scan demonstrated increased radiotracer uptake and angiography showed a highly vascularized lesion. The lesion was suspected as aneurysmal bone cyst (ABC) and preoperative embolization was performed, which minimize the extent of operation and the surgical complication. The lesion was treated by surgical curettage and lateral decortication with repositioning. No additional treatment such as a surgical reconstruction or bone graft was needed. Early diagnosis of ABC is very important and appropriate treatment should be performed considering several factors such as age, surgical complication, and possibility of recurrence.

• 대한핵의학회지
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• 제29권4호
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• pp.465-472
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• 1995

목적 : 원발성 부갑상선기능 항진증의 대부분의 원인인 부갑상선 선종의 유일한 완치는 수술이며 수술의 성패에 가장 중요한 것은 수술전의 정확한 ??소의 확인이다. 다양한 영상검사들이 동원되고있으나 각가 결점이 있고 가장 특이도가 높은 $^{201}T1-^{99m}Tc$감영 촬영방법도 검사방법등에 문제점이 있다. 이에 원발성 부갑상선기능 항진증 환자에게 최근에 사용되고있는 $^{99m}Tc$-Sestamibi 부갑상선 스캔의 유용성을 알아보고자 하였다. 대상 및 방법 : 19명의 부갑상선기능 항진증환자에서 모든 환자에게 초음파 검사, CT, $^{201}T1-^{99m}Tc$감영 촬영을 시행하고 그중 5명은 $^{99m}Tc$-Sestamibi 부갑상선 스캔을 시행하여 수술후 확진결과와 함께 비교하였다. 결과 : 초음파 검사와 CT 및 $^{201}T1-^{99m}Tc$감영 스캔은 19예중 각가 12예(67.1%), 14예(78.9%) 그리고 17예(89.5%)에서 병소확인이 가능하였고 $^{99m}Tc$-Sestamibi 부갑상선 스캔은 시행한 5예(100%) 모두에서 병소 확인이 가능하였다. 결론 : 이상의 결과로 $^{99m}Tc$-Sestamibi 부갑상선 스캔은 원발성 부갑상선기능 항진증의 수술전 병소확인에서 유용한 검사법으로 이용될 수 있으리라 사료된다.

• Journal of Chest Surgery
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• 제31권8호
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• pp.787-791
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• 1998

대상 및 방법: 가톨릭대학교 의과대학 흉부외과학 교실에서는 1979년 부터 1996년까지 27명의 원발성 심장 종양 환자를 수술하였으며, 환자의 연령은 21세부터 67세까지로 평균 45.1세이었다. 술후 병리학적 진단결과 24례는 점액종, 2례는 연골 육종, 1례는 혈관 육종이며, 가장 흔한 술전 증상은 심부전이었다. 진단은 심장초음파로 확진되었고 호발 부위는 난원와였다. 종양 주위를 세심히 관찰후 심방 중격을 포함하여 완전 절제를 시행하였으며 술후 대부분의 환자 에서 증상 호전이 있었다. 결과: 1례에서 수술 직후 저심박출증으로 사망하였고, 2례에서 국소 재발로 인해 만기 사망하였다. 결론: 결론적으로, 수술시 완전 절제가 중요하며 술전 심장 초음파 검사상 양성으로 보일지라도 악성의 가능성을 배제해서는 안되며 CT나 MRI가 진단에 도움이 되며 수술시에 악성이 의심되면 광범위한 절제와 더불어 술후 항암제및 방사선 요법이 도움이 되리라 생각된다.