• 대한두개안면성형외과학회지
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• 제18권1호
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• pp.25-29
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• 2017

Background: Many authors have evaluated the post-reduction result of nasal bone fracture through patient satisfaction or postoperative complications. However, these results are limited because they are subjective. The aim of this study was to correlate an objective operation result with patient satisfaction and postoperative complications according to the type of nasal bone fractures. Methods: Our study included 313 patients who had isolated nasal bone fractures and had undergone a closed reduction. Postoperative outcomes were evaluated objectively using computed tomographic (CT) images, while patient satisfaction was evaluated one month after the operation. The correlation of the operation result with patient satisfaction was then evaluated. Results: The correlation between the operation result and patient satisfaction was highest for the lateral impact group type I (LI) type of fracture and lowest for the comminuted fracture group (C) type of fracture. However, there were no statistically significant differences in correlation between the overall result and patient satisfaction by fracture type. The complication rate of lateral impact group type II (LII), C, and frontal impact group type I (FI) fractures were statistically significantly higher than that of frontal impact group type II (FII) and LI fractures. There were no statistically significant relationships between the prevalence of complications and septal fracture or deviation according to the fracture type. In the total group, however, there was a statistically significant difference in complication rate by septal fracture. Conclusion: We found that the CT outcomes correlated with patient satisfaction. The complication rate of LII, C, and FI fractures were statistically significantly higher than that of FII and LI fractures. Septal fracture/deviation increased the postoperative complication in the total group.

• 대한두개안면성형외과학회지
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• 제18권1호
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• pp.30-36
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• 2017

Background: Nasal fractures have a tendency of resulting in structural or functional complications, and the results can vary according to the type of nasal bone fracture. The aim of this study was to evaluate the objective postoperative results according to the type of nasal bone fractures. Methods: We reviewed 313 patients who had a closed reduction of nasal bone fracture. The classification of nasal bone fracture by Stranc and Robertson was used to characterize the fracture type: frontal impact group type I (FI), frontal impact group type II (FII), lateral impact group type I (LI), lateral impact group type II (LII), and comminuted fracture group (C). For each patient, we tried to use the same axial image section of computed tomographic (CT) scans before and immediately after operation. Postoperative outcomes were classified into 4 grades: excellent (E), good (G), fair (F), and poor (P). We also analyzed postoperative complications by fracture type. Results: Regarding the postoperative CT images, 189 subjects showed E results, 99 subjects showed G, 18 subjects showed F, and 7 subjects showed P reduction. The rate of operation results graded as E by each fracture type was 66.67% in FI, 52.0% in FII, 64.21% in LI, 62.79% in LII, and 21.74% in C. Complications of FI (7.14%), LII (13.95%), and C (13.04%) groups occurred more than in the FII (4.00%) and LI (4.21%) groups. Conclusion: It seems that the operation result by fracture type was better in the FI, LI, and LII type than the FII and C type; after one month, however, LII type showed more complications than other types. The septal fracture can be thought to affect early reduction results in nasal bone fractures.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제30권2호
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• pp.165-169
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• 2004

본 증례는 우측 이하선에 종물을 가진 50세 여자 환자에서 술전에 시행한 세침흡인검사와 전산화단층촬영 소견 및 술중에 시행한 동결생검에서 괴사소견으로 인해 점액표피양암종으로 진단되어 우측 이하선 전적출술과 경부청소술 등을 시행하였으나 수술 후 조직병리학적 검사에서 괴사를 동반한 다형성 선종으로 최종 진단되었다. 괴사를 동반한 다형성 선종에서 보이는 편평 상피세포는 점액표피양암종에서 나타나는 편평세포의 특징으로 오진할 수 있으므로 주의해야 한다. 본 증례는 악성종양으로 잘못 진단할 수 있는 다형성 선종의 괴사와 조직병리학적 특징들을 이해함으로써 임상의사들의 오진 가능성을 예방하고 다형성 선종의 진단과 치료에 주의해야 함을 시사한다.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제46권2호
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• pp.150-154
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• 2020

We present a case of osteoradionecrosis treated with leukocyte- and platelet-rich fibrin (LPRF) and surgery and followed up with clinical and tomographic investigations. A 65-year-old woman presented with pain in the posterior region of the right palate. Her medical history included cardiovascular disease and squamous cell carcinoma in the anterior region of the floor of the mouth that had been treated with intensity-modulated radiation therapy. Measurements of isodose curves showed a full dosage of 6,462.6 cGy in the anterior mandibular region, whereas that in the posterior region on the right side of the maxilla reached 5,708.1 cGy. Osteotomy was performed using rotary instruments, and debridement and placement of two LPRF membranes were also carried out. New gum tissue with no bone exposure was noted 14 days postoperatively. Tissue repair was complete, and the patient had no further complaints. During a 39-month follow-up period, the oral mucosa remained intact, and the patient was rehabilitated with a new upper denture. Since there is no consensus regarding the best protocol to treat osteoradionecrosis, LPRF might be an interesting adjuvant to a surgical approach. The use of LPRF is simple and reduces operational costs, time of handling, probability of technical failure, and associated morbidities for patients with osteoradionecrosis.

• Tuberculosis and Respiratory Diseases
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• 제51권1호
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• pp.70-75
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• 2001

저자들은 폐결핵의 병력이 있던 2명의 환자에서 기침과 객담을 주소로 내원하여 단순 흉부 방사선과 흉부 전산화 단층 촬영 결과 흉막비후와 기관지흉막루를 의심할 수 있는 공동형성을 보이고 흉막 천자액 배양과 수술후 조직배양검사결과 Aspergillus fumi-gatus가 확인되어 수술 및 항진균제를 사용하여 치료한 2례를 경험하였기에 이를 보고하는 바이다.

• Journal of Yeungnam Medical Science
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• 제25권2호
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• pp.160-164
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• 2008

재태 38주에 시행한 산전 검사상 우연히 발견된 거미막 낭종을 가지고 태어난 생후 2개월된 여아가 지속적인 과민상태를 나타내었다. 이후 시행한 두부 전산화 단층촬영상 수두증을 동반하여 크기가 증가된 거미막 낭종이 관찰되었다. 우리는 상기 소견에 대하여 개두술하에 낭종 개창술을 시행하였으나 낭종의 크기가 줄어들지 않았고, 13개월 이후에 시행한 경과관찰에서 수두증이 악화된 소견을 보였다. 환아는 이후 낭종-복막간 단락술을 시행하였으며, 5년뒤 시행한 두부 자기공명영상에서 낭종의 크기 감소와 더불어 뇌수두증이 해소되었다. 거미막 낭종 자체의 크기가 증가하는 것은 드문 현상이며, 아직까지 이에 대한 명확한 수술적 치료는 나와 있지 않다. 우리는 이 증례를 통하여 수두증이 동반된 크기가 증가하는 거미막 낭종의 치료에 있어서 낭종-복강간 단락술이 적절한 수술적 치료법이 될 것으로 판단한다.

• Asian Pacific Journal of Cancer Prevention
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• 제16권17호
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• pp.7795-7801
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• 2015

The aim of the present research was to establish primary characteristics of electron beams for a Varian 2100C/D linear accelerator with recently developed PRIMO Monte Carlo software and to verify relations between electron energy and dose distribution. To maintain conformity of simulated and measured dose curves within 1%/1mm, mean energy, Full Width at Half Maximum (FWHM) of energy and focal spot FWHM of initial beam were changed iteratively. Mean and most probable energies were extracted from validated phase spaces and compared with related empirical equation results. To explain the importance of correct estimation of primary energy on a clinical case, computed tomography images of a thorax phantom were imported in PRIMO. Dose distributions and dose volume histogram (DVH) curves were compared between validated and artificial cases with overestimated energy. Initial mean energies were obtained of 6.68, 9.73, 13.2 and 16.4 MeV for 6, 9, 12 and 15 nominal energies, respectively. Energy FWHM reduced with increase in energy. Three mm focal spot FWHM for 9 MeV and 4 mm for other energies made proper matches of simulated and measured profiles. In addition, the maximum difference of calculated mean electrons energy at the phantom surface with empirical equation was 2.2 percent. Finally, clear differences in DVH curves of validated and artificial energy were observed as heterogeneity indexes were 0.15 for 7.21 MeV and 0.25 for 6.68 MeV. The Monte Carlo model presented in PRIMO for Varian 2100 CD was precisely validated. IAEA polynomial equations estimated mean energy more accurately than a known linear one. Small displacement of R50 changed DVH curves and homogeneity indexes. PRIMO is a user-friendly software which has suitable capabilities to calculate dose distribution in water phantoms or computerized tomographic volumes accurately.

• Clinics in Shoulder and Elbow
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• 제11권1호
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• pp.37-40
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• 2008

목적: 전산화단층촬영을 이용하여 한국인 60, 70대의 정상 견갑골 관절와의 크기를 평가하고자 하였다. 대상 및 방법: 견갑골의 손상이 없는 것으로 확인된 상완골 골절에서 시행된 견관절 전산화단층촬영 결과를 대상으로 하였다. 환자는 총 25명으로 남자가 14명, 여자가 11명이었다. 환자의 연령은 62세에서 76세 사이였으며, 평균 연령은 68.8세였다. 사용한 소프트 웨어는 Display workstation version 2.03.73.315 였으며 견관절 관절와의 최대 상하 및 전후방 직경을 측정하였다. 결과: 측정된 견관절 관절와의 최대 상하 직경은 평균 31.2 mm ($27{\sim}34\;mm$)였으며, 최대 전후방 직경은 평균 26.1 mm ($22{\sim}31\;mm$)였다. 결론: 이러한 결과는 다른 국제 학술지의 보고와는 다른 양상으로 국내 환자의 골절 치료 및 인공 관절 모델을 개발하는데 중요한 인자가 될 것으로 보인다.

• Journal of Chest Surgery
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• 제35권7호
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• pp.568-572
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• 2002

우리는 단순 흉부 방사선 촬영에서 우연히 발견한 47세 여자의 횡격흉막에서 발생한 양성 고립성 섬유성 종양 1례를 보고한다. 단순 흉부 방사선 촬영, 복부 초음파 검사, 전산화 단층 촬영과 자기공명영상으로 주변과 경계가 분명한 다엽성의 흉막 섬유성 종양으로 진단하였다. 우측 개흉 수술시 종괴는 대부분 유착이 없었으나 $5{\times}4$cm 정도의 횡격막 중앙부와 유경으로 붙어 있었다. 붙어 있는 횡격막과 함께 종괴를 완전히 절제하였다. 종양은 $23.5{\times}13.5{\times}8.0$cm 크기였으며, 병리조직학 진단은 양성 섬유성 종양이었고 함께 절제된 횡격막에는 종양세포가 없었다.

• Journal of Chest Surgery
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• 제43권5호
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• pp.546-549
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• 2010

70세 남자 환자가 심한 복부 및 배부 통증으로 흉부 대동맥류 파열 의심 하에 전원되었다. 환자는 6개월 전 타 병원에서 하행대동맥류 의심 하에 대동맥 스텐트를 삽입하였던 병력이 있었으나 전산화 단층촬영 소견은 후종격동 악성 종양을 시사하였다. 개흉 후 이와 같은 진단이 확인되었으며 종격동의 육종은 거기에 둘러싸인 대동맥과 함께 성공적으로 절제되었다. 본 증례는 최근 주목을 받고 있는 대동맥 스텐트 그라프트 삽입에 대한 맹목적인 선호에 대하여 주의를 환기시키는 교훈적인 경우라고 판단된다.