SPECT/CT 영상에서 Volumetrix Suite의 유용성

조성욱,신병호,김종필,윤석환,김태엽,성용준,문일상,우재룡,이호영,Cho, Seung-Wook,Shin, Byeong-Ho,Kim, Jong-Pil,Yoon, Seok-Hwan,Kim, Tae-Yeub,Seung, Yong-Joon,Moon, Il-Sang,Woo, Jae-Ryong,Lee, Ho-Young 대한핵의학기술학회 2010 핵의학 기술 Vol.14 No.2

Purpose: The SPECT/CT is able to acquire diagnostic information resolved the difficult problems that discriminate regions of focals by intergrating functional images and anatomical images. We introduce the usefulness of "Volumetrix Suite" which can describe 3D images by the convergence of the SPECT/CT images and reference CT images. Materials and Methods: We applied Volumetrix Suite program (Volumetrix IR, Volumetrix 3D) to patients, Bone, Venography, Parathyroid, WBC, taken diagnostic CT examination which have same regions of focal in Seoul Metropolitan Government Seoul National University Boramae Medical Center. After acquiring SPECT/CT images and reference CT images, we fused a couple of scans applying for this programs. The CT scan of Infinia Hawkeye 4 shows limitation of anatomical information. For this reason, we tried to transfer CT images that have lots of diagnostic informations as the form of Dicom file in PACS, and changed from 2D images to 3D images after image registering in Xeleris Workstaion of Hawkeye 4. Results & Conclusion: By using Volumetrix Suite program, we're able to acquire more accurate anatomical informations with 3D rendering which can distinguish both location and range of focals in Infinia Hawkeye 4. Thus, the result of utilizing this program indicate that nuclear medicine anatomical images can be improved by providing more diagnostic imformations produced by its program.

동일 지명의 형성 과정 고찰: 전북의 성수면과 성수산을 사례로

조성욱 ( Sung Wook Cho ) 한국지리학회 2015 한국지리학회지 Vol.4 No.1

This research looks at the process and features of taking the same geographical names in the small region by focusing on formation process of two ‘Sungsu-Myeon’ and three ‘Mountain Sungsu’ present in Imshil and Jinan Gun district. The research results are as follows. First, the nomination of ‘Holy Life (聖壽)’ was derived from the legend of related Yi-dynasty at Sang-i temple located in Imshil Mt. Sungsu, and the naming time might be estimated since 1394. Second, the first named it among the three Mt. Sungsu seen as Imshil Mt. Sungsu, and Baek-un Myeon’s Mt. Sungsu and Sungsu Myeon’s Mt. Sungsu are after that. That naming time can be seen before 1700s. They have the symbolic features which are Imshil Mt. Sungsu (876 m) in the historical aspect, and Baek-un Mt. Sungsu (1,059 m) in the geographical aspect. Third, Mt. Sungsu is the presence in the first, and appeared Sungsu Myeon as a new administrative district in 1914. Imshil Sungsu Myeon had originated in Imshil Mt. Sungsu (876 m) and Jinan Sungsu Myeon was derived from Mt. Sungsu (482 m) located in Sungsu Myeon.

SPECT/CT에서 CT감쇠보정에 따른 영상의 질 평가

조성욱,김계환,성용준,이형진,김진의,Cho, Sung Wook,Kim, Gye Hwan,Sung, Yong Joon,Lee, Hyung Jin,Kim, Jin Eui 대한핵의학기술학회 2013 핵의학 기술 Vol.17 No.2

Purpose: SPECT/CT, a combination of SPECT and CT, is capable of expressing the results of attenuation correction on images biased by automatic program. As a result, this research evaluates the usefulness of images with CT attenuation correction, using various phantoms and images of patients. Materials and Methods: From July of 2012 to September of 2012, this research was conducted on the contrast, spatial resolution, and images of patients. We studied the contrast with IEC body phantom and Jaszczak phantom, while the spatial resolution was evaluated with NEMA triple line phantom. Further, a comparative study was carried out on the quality of the images, on the difference between the images before and after the CT attenuation correction. Results: Compared the differences between the contrast before and after the CT attenuation correction in IEC body phantom. The contrast was improved by 33.6% at minimum, 89.8% at maximum. In case of Jaszczak Phantom, the contrast was enhanced by 9.9% at minimum, 27.8% at maximum. In NEMA Triple line phantom, the resolution was raised by 4.5% in average: 4.4% in horizontal, 4.5% in vertical. In Anthropomorphic Torso Phantom, the perfusion score of the interior wall with the most severe attenuation was measured to be 29.4%. In the experiment carried out on myocardial perfusion SPECT/CT patients, 9% improvement was discovered in the interior wall, where the most dramatic attenuation occurred, after the CT attenuation correction. Conclusion: SPECT/CT proved its clinical usefulness by enabling the acquisition of images with enhanced contrast and spatial resolution compare to the ones resulted from SPECT.

지리교육에서 주변지역학습의 교육적 의의

조성욱 ( Sung Wook Cho ) 한국지리환경교육학회 2002 한국지리환경교육학회지 Vol.10 No.2

The discussion about local studies is distinguish into the teleology and methodology but focus on methodology recently. I propose the vocabulary of `neighborhood area studies` which is possible to define the scale of the area clearly, the study by the area and directly contact experience. Localization of curriculum and localized learning make the teacher and student to the key role in teaching and learning situation. Neighborhood area studies is the most suitable method for localized learning. Also it is possible to direct contact experience, synthesis of cognitive and affective and skill domain, understanding of geography and history an dsocial studies at the same time. It has and educational effect not only geography education but also the subject of synthesis social studies, environmental education, life long education. Especially it has an educational effect in geography education which is possible teaching and learning in context situation, self-governing in learning and to make strategic point in area recognition.

학습자 중심의 경제지리 교육내용 구성 방법

조성욱 ( Sung-wook Cho ) 한국지리환경교육학회 2016 한국지리환경교육학회지 Vol.24 No.3

This study suggested the learner-centered construction of contents as a way to solve the problem of existed economic geography curriculum. The alternative was the dual course in `self level` and `national level`, the `self level` course contents were comprised of the consumer, the distribution process, the production region. And the `national level` course contents were consisted of the trade among nations, the regional development and the environmental issues. This study propose the economic geography curriculum in 6 units and 18 sub-units. An alternative may consist of learner-centered rather than academy in the unit organization, it can reflect the changes of the industrial structure which is increase the proportion of service section. And it can recognize that personal and national level problems are cross-linked rather than independent. Also there are differences in teaching and learning process for the understanding of daily life rather than study for the evaluation and understand of concepts. An alternative is proposed that understanding through the daily life cases firstly and introducing academic contents as a tool in the next step. And it allows that inductive and empirical approach rather than descriptive approach in teaching and learning process.

교통로 변화의 주요 요인과 특성

조성욱(Sung Wook Cho) 한국지역지리학회 2008 한국지역지리학회지 Vol.14 No.5

지리교육에서 공간지능의 역할

조성욱 ( Sung Wook Cho ) 한국지리환경교육학회 2005 한국지리환경교육학회지 Vol.13 No.2

지명 "호남(湖南)"의 형성과 지리적 범위 변화 가능성

조성욱(Sung Wook Cho) 한국지역지리학회 2008 한국지역지리학회지 Vol.14 No.3

지리 과목 수강을 통한 지역 인식 변화 특성 - “유럽지리” 강의를 중심으로 -

조성욱 ( Sung Wook Cho ) 한국지리환경교육학회 2012 한국지리환경교육학회지 Vol.20 No.3

This study is to investigate the regional cognition change and storage type on regional knowledge of students by questionnaire survey and direct interview, analysis of mental map. Before lecture the students had positive image for Europe region and built up image on the high school period, and influenced by history subject than geography subject. For build image about Europe region, the cultural aspects and living environment and tourism and natural conditions are given to positive influence, but historical and economical aspects are given to negative influence. After lecture the student show three type on the regional cognition change that the first type is from positive cognition to affirmative positive, the second type is not change, the third type is from positive cognition to a little negative cognition. The case of from positive cognition to affirmative positive change and not change type are thought that knowledge increase is the most important effect of this lecture. But the case of from positive cognition to a little negative cognition change type is thought that the formation of perspective to region is the most important effect of this lecture. Through the analysis of mental map found that the student’s storage and withdraw structure of regional knowledge is classify three type which is ‘thematic type’, ‘regional type’ and ‘mixed type’. This structure is given the hint that the selection and organization of educational contents and organize of textbook contents has to not by subject structure but by learner’s knowledge storage and withdraw structure of regional knowledge.

지역 중심지의 역할 변화와 지리적 관성

조성욱(Sung Wook Cho) 한국지역지리학회 2006 한국지역지리학회지 Vol.12 No.5