http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 최상천 (검색결과 156 건)
- 무료
- 기관 내 무료
- 유료
-
-
최상천,민영기,이인수,윤기호,강보라,정윤석,조준필,김기운 대한의학회 2013 Journal of Korean medical science Vol.28 No.12
College student volunteers (n=142) completed a 580 km road march for 21 consecutive days. Each volunteer carried a backpack that weighed 14.1±1.4 kg on the average. We investigated the incidence and location of blisters associated with the road march using a foot map along with other injuries. Overall, 95.1% of the subjects (135 of 142) sustained one or more injuries. All injured subjects had foot blisters, and 18% had other foot injuries. The most common locations of blister development were the right 5th toe (61%) and the left 5th toe (57%). The little toes seem to have been subjected to the greatest friction and shearing forces. March-related injuries, excluding foot injuries, were ankle pain (12.7%), knee pain (12.7%) and Achilles tendon pain (7.7%). Six subjects (4.2%) needed extra medical treatment for more than 2 weeks prior to returning to their daily lives after completion of the march due to associated injuries. The present study observed a very high incidence rate of injuries (95.1%) associated with the 580 km university students grand road march. These injuries posed an obstacle against completion of the road march and against returning to daily life. Active preventive interventions such as physical therapy and customized reinforced shoes and education program are recommended for reducing incidence rate and severity of injuries.
-
-
Injuries associated with Road March in the 580 km University Volunteers Grand March
최상천,민영기,이인수,윤기호,강보라,정윤석,조준필,김기운 대한응급의학회 2013 대한응급의학회 학술대회초록집 Vol.2013 No.2
Backgrounds: Long-distance road marches have usually been conducted in the military in order to train soldiers. Interestingly, some South Korean college students sometimes participate in a road march. Prolonged road marches have produced specific physical problems. Objective: We investigated the incidence and location of a blister associated with the road march using plantar geographic mapping, and also other injuries associated with the road march. Methods: College student-volunteers (N=142) completed a 580-km road march over 21 days carrying an average load mass of 14.1±1.4 kg. Results: Overall, 95.1% (135/142) of the subjects sustained one or more injuries; 100%, foot blisters; 18%, other foot injuries. The most common locations of the blister developments were on the right 5th toe (61%); location 15 and the left 5th toe (57%); location 45. (Fig. 5, Fig. 6) March-related injuries other than those in the foot were ankle sprain / pain (in 12.7%), knee pain / sprain (in 12.7%) and Achilles tendon pain (in 7.7%). Because of injuries associated with the road march, 6 subjects (4.2%) were needed extra medical treatments more than 4 weeks for returning to their daily life even after completion of road march. Conclusion: Through the present investigation, a high incidence rate (95.1%) of injury was observed in association with the road march. Considering that the most common locations of the blister developments, the little toes seem to have been subjected to the greatest friction and shearing forces. The development and implementation of preventive interventions or education programs to reduce the incidence rate and duration of treatment for injuries associated with the road march is highly recommended.
-
-
-
지속성 정정맥 혈액투과여과로 치료된 급성발프론산 중독 1예
최상천,민영기,안정환,정윤석 대한중환자의학회 2009 Acute and Critical Care Vol.24 No.2
Valproic acid intoxication is a fairly common clinical problem that can result in serious complications. Traditionally the treatment of valproic acid overdose has been limited to supportive measures, but high blood levels may require extracorporeal removal, and publications on this experience are scarce. This case demonstrated continuous veno-venous hemodiafiltration successfully used in patient with severe valproic acid overdose who was hemodynamically unstable.
-
-
Image Denoising for Metal MRI Exploiting Sparsity and Low Rank Priors
최상천,박준식,김한성,박재석 대한자기공명의과학회 2016 Investigative Magnetic Resonance Imaging Vol.20 No.4
Purpose: The management of metal-induced field inhomogeneities is one of the major concerns of distortion-free magnetic resonance images near metallic implants. The recently proposed method called “Slice Encoding for Metal Artifact Correction(SEMAC)” is an effective spin echo pulse sequence of magnetic resonance imaging(MRI) near metallic implants. However, as SEMAC uses the noisy resolved data elements, SEMAC images can have a major problem for improving the signal-tonoise ratio (SNR) without compromising the correction of metal artifacts. To address that issue, this paper presents a novel reconstruction technique for providing an improvement of the SNR in SEMAC images without sacrificing the correction of metal artifacts. Materials and Methods: Low-rank approximation in each coil image is first performed to suppress the noise in the slice direction, because the signal is highly correlated between SEMAC-encoded slices. Secondly, SEMAC images are reconstructed by the best linear unbiased estimator (BLUE), also known as Gauss-Markov or weighted least squares. Noise levels and correlation in the receiver channels are considered for the sake of SNR optimization. To this end, since distorted excitation profiles are sparse, l1 minimization performs well in recovering the sparse distorted excitation profiles and the sparse modeling of our approach offers excellent correction of metal-induced distortions. Results: Three images reconstructed using SEMAC, SEMAC with the conventional two-step noise reduction, and the proposed image denoising for metal MRI exploiting sparsity and low rank approximation algorithm were compared. The proposed algorithm outperformed two methods and produced 119% SNR better than SEMAC and 89% SNR better than SEMAC with the conventional two-step noise reduction. Conclusion: We successfully demonstrated that the proposed, novel algorithm for SEMAC, if compared with conventional de-noising methods, substantially improves SNR and reduces artifacts.
-
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
