• Title, Summary, Keyword: Sensitivity Test

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The Diagnostic Assessment of Hand Elevation Test in Carpal Tunnel Syndrome

  • Ma, HyunJin;Kim, Insoo
    • Journal of Korean Neurosurgical Society
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    • v.52 no.5
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    • pp.472-475
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    • 2012
  • Objective : The aim of this study is to establish the value of hand elevation test as a reproducible provocative test for the diagnosis of carpal tunnel syndrome (CTS). Methods : We had a prospective study of 45 hands of 38 patients diagnosed with CTS between April 2005 and February 2009. The diagnosis of CTS was based on the American Academy of Neurology clinical diagnostic criteria. Experimental and control group patients underwent Tinel's test, Phalen's test, carpal compression test and hand elevation test as provocative tests for CTS. Results : We used chi-square analysis to compare Tinel's test and Phalen's test, carpal compression test with hand elevation test. The sensitivity and specificity of the hand elevation test is 86.7% and 88.9% each. Tinel's test had 82.2% sensitivity and 88.9% specificity. Phalen's test had 84.4% sensitivity and 86.7% specificity. Carpal compression test had 84.4% sensitivity 82.2% specificity. Comparisons of sensitivity and specificity between hand elevation test and Tinel's test, Phalen's test, and carpal compression test had no statistically significant differences. To compare the diagnostic accuracies of four tests, the area under the non-parametric receiver operating character curve was applied. Conclusion : The hand elevation test has higher sensitivity and specificity than Tinel's test, Phalen's test, and carpal compression test. Chi-square statistical analysis confirms the hand elevation test is not ineffective campared with Tinel's test, Phalen's test, and carpal compression test.

Diagnostic Accuracy of Physical Examinations in Impingement Syndrome and Rotator Cuff Tear (충돌 증후군과 회전근 개 파열을 위한 이학적 검사들의 진단적 가치에 대한 분석)

  • Lee Young Soo;Kim Jin Yong;Cho Duck Yun;Kim Young Ho;Kim Se Hyen
    • Clinics in Shoulder and Elbow
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    • v.4 no.2
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    • pp.186-190
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    • 2001
  • Purpose: The aim of this study was to investigate the diagnostic accuracy of Neer, Hawkins provocative tests and supraspinatus manual muscle test for the assessment of impingement syndrome, partial tear and small complete tear of De rotator cuff. Materials and Methods: Seventy-one female and 115 male patients were included in the study. Patients were divided into four groups of no impingement, impingement without tear, partial tear and small complete tear of the rotator cuff, which were confirmed by sonogram, magnetic resonance imaging and surgery. Neer and Hawkins provocative tests and supraspinatus manual muscle test were performed respectively. SAS 6.12 version was used in statistical analysis. Results: We found that Neer test had 94% sensitivity, 54% specificity for impingement without tear and 89% sensitivity, 78% specificity for partial tear and 96% sensitivity, 23% specificity for small tear. Hawkins test revealed 95% sensitivity, 54% specificity for impingement without tear and 93% sensitivity, 78% specificity for partial tear and 100% sensitivity, 23% specificity for small tear. Supraspinatus manual muscle test revealed 27% sensitivity, 94% specificity for impingement without tear and 29% sensitivity, 82% specificity for partial tear and 48% sensitivity, 82% specificity for small tear. Conclusion: Neer and Hawkins tests have high sensitivity, low specificity for impingement syndrome, partial and small tear. Supraspinatus manual muscle test had low sensitivity and high specificity. However this test was not effective to differentiate the partial and small rotator cuff tear. We thought that more effective provocative test should be designed to detect the partial and small rotator cuff tear.

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Diagnostic Accordance Rate and Accuracy Between Cytological and Histological Test in Lung Disease (폐질환에 있어 세포검사와 조직검사의 진단 일치율 및 정확도에 대한 조사 연구)

  • Kim, Sung-Chul;Ro, Joung-Whan;Kim, Tai-Jeon
    • Korean Journal of Clinical Laboratory Science
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    • v.41 no.4
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    • pp.189-195
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    • 2009
  • Lung cancer is a type of cancer with high mortality; its 5-year survival rate is at a low 14%. Related cytological tests include sputum, bronchial brushing, bronchial washing and fine needle aspiration cytology test etc. From the test specimens in which sputum, bronchial brushing, bronchial washing, and fine needle aspiration cytology were performed, the sensitivity, specificity and accuracy between cytology test and histology test. In the sputum test, sensitivity was 27.71% and specificity was 98.02%, and the bronchial brushing test showed sensitivity of 93.33% and a specificity of 91.3%. The bronchial washing test was a sensitivity of 53.7% and its specificity was 98.9%, and the fine needle aspiration cytology test showed sensitivity and specificity were 88.46% and 72.97%, respectively. In the specimens diagnosed as normal at the sputum test, malignant diagnosis was found in 21 specimens of bronchial brushing, 30 cases of bronchial washings and 37 cases of fine needle aspiration cytology specimens. In the specimens diagnosed as normal at the bronchial washing test, malignant diagnosis was found in 5 specimens of sputum, 7 specimens of bronchial brushin and 1 cases of fine needle aspiration cytology. One specimens found to be normal in fine needle aspiration cytology turned out to maligant in sputum test. The result of this research shows that, in diagnosis lung cancer, a test method of high sensitivity and specificity should be pursued. However, depending on the location and malignancy of the illness, diagnosis may not be obtained in some cases. Therefore, we conclude that the cytological tests performed for lung cancer testing such as sputum, bronchial brushing, bronchial washing, and fine needle aspiration cytology should be carried out in a mutually complementary manner.

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Effect of Sensitivity Variation for Mounting Methods of Accelerometer in Crash Test (충돌시험시 가속도 센서의 접착방법이 감도 변화에 미치는 영향)

  • Jang, Won-Ho;Kim, Ki-Oh;Beom, Hyen-Kyun;Kwon, Sung-Eun
    • Transactions of the Korean Society of Automotive Engineers
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    • v.16 no.6
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    • pp.115-120
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    • 2008
  • There are many typesof accelerometer sensor. There was mainly used high-g accelerometer to obtain data for vehicle in crash test. Accelerometer was mounted on test vehicle with mounting blocks. Test result can be influenced by condition of mounting i.e. bonding material and type of block. These influences can be evaluated to variation of sensitivity in calibration test. In this paper, Calibration test were carried out for 3 types of bonding material i.e. stud, beewax and double side tape. Other factor was taken into consideration by 3-types for mounting block. All test was conducted by sinusoidal signal vibrator up to 4500Hz. In order to investigate influence for sensitivity from different input voltage in the calibrator, the same test was repeated. Test results were compared with standard accelerometer data. Relative sensitivities and phases were showed small difference in sensitivity for bonding materials with one block, but significant one for another block and different input voltage below 1000Hz.

The Effects of the Forest Experience on Elementary Students' Environmental Sensitivity and Cognition Ability (뒷산 체험 활동이 아동의 환경 감수성과 인지 능력에 미치는 영향)

  • Kim, Jeong-Suk;Jeong, Mi-Sun
    • Hwankyungkyoyuk
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    • v.22 no.4
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    • pp.14-25
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    • 2009
  • The purpose of this study was to investigate the effects of the forest experience on elementary students' environmental sensitivity and cognition ability. The forest experience was applied to the experimental group and the control group was taught by the traditional teaching method focused on teachers' lecture for 8 lessons. The pre-test, the 1st, and 2nd post-test for environmental sensitivity were applied to both groups to analyze the effects of the forest experience. After then the results were analyzed by One-way ANOVA and ANCOVA. And the narration test for cognition ability on learning a environmental context was applied to only the experimental group and the results were analyzed. As a result, the students' environmental sensitivity was not significantly different(p<.05) between experimental and control groups in terms of the pre-test score. However, the 1st and 2nd post-test scores of experimental group were significantly higher than those of the control group in term of the level of environmental sensitivity(F=9.28, p<.01, F=10.95, p<.01). The results of the forest experience in the aspect of cognition ability, 'the sound of nature(61%)', 'the smiling forest path which blooming out(57%)', and 'one's own places(52%) were high but 'the kinds and characteristics of the roots(30%)' was low. In conclusion, the forest experience made a positive effect on the students' environmental sensitivity and cognition ability through the direct observation, data collection, and analysis on the nearby natural environment.

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A Study on the Improvement for Sensitivity Test of Flame Detectors (불꽃화재감지기의 시험기준 개선에 관한 연구)

  • Baek, Dong-Hyun
    • Fire Science and Engineering
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    • v.28 no.6
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    • pp.58-61
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    • 2014
  • Flame detectors has been used more than heat & smoke detector, because this is more effective to catch fire and ceiling height in spite of high price. For upgrade to flame detector, Compare to national or abroad standard about performance test, sensitivity test, sectioning indoor or outdoor, after service and management. As a result, Europe and America have only sensitivity test, no have not operation test and sectioning indoor & outdoor. In performance test, action is put to focus to credit and durability, Not operation test is to be able to tune the sensitivity to match the environment of the site. Also, we need code about aftercare, quality assurance responsibility and implement special detector institution by Certificate Authority implement.

A Drug Sensitivity Test for Shortening of Detection Time (항균성물질(抗菌性物質) 감수성시험(感受性試驗)의 시간단축(時間短縮)과 임상적응용(臨床的應用))

  • Kim, Kyo-Joon;Hu, Min-Do;Lee, Myung-Hwan
    • Korean Journal of Veterinary Research
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    • v.23 no.1
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    • pp.123-128
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    • 1983
  • This study was conducted to evaluate the modified drug sensitivity test for the shortening of detection time and clinical application. The results obtained were summarized as follows. 1. Inhibitory zone in 6 strains of Staphylococcus and Escherichia coli tested to sensitivity teat were reached at 100% between 2 and 6 hours. 2. The sensitivity test of Staphylococcus A, B and E. coli No. 2, No. 3 to antibacterial ointment drugs were strong positive(+++), but Staphylococcus A. A. and E. coli No. 1 were mild resistant(+). 3. The sensitivity test of Staphylococcus A. B and E. coli No. 2, No. 3 to antibacterial injection drugs in 6 hours after treatment were strong positive(+++), and Staphylococcus A. A. and E. coli No. 1 were moderate positive(++). 4. This modified method was detected 86% degree of sensitive between 7 to 12 hours after treatment. 5. We think this modified method was more practical compare to other methods.

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Instrumentation of Thermo-sensitivity Test of Well Points, a Pilot Report (정혈 지열감도 측정법의 객관화 -기기 개발 및 시험 측정 결과 보고-)

  • Lee, Byung-Hoon;Lee, Sang-Hoon;Kim, Ki-Wang
    • Journal of Acupuncture Research
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    • v.28 no.2
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    • pp.133-141
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    • 2011
  • Objectives : Although the thermo-sensitivity test in Well points in 12 Meridians(井穴知熱感度測定法) has been used for several decades, it is still performed by a manual way, and lack in objectivity consequently. To make it more objective, accurate and convenient test, we have developed a novel system to test thermo-sensitivity in Well points. Methods : To enhance the blindness of the test, we made a shielded system which give heat to some fingers of subjects in random way. To perform the test in quantitative manner, we developed a fully automated, computer-controlled system composed of heating bulbs and response button array. Results : The developed system showed linearity in heating the finger phantom. It also gave acceptable but interesting features in pilot tests with several young adult subjects. Conclusions : By the developed system, we could improve objectivity and convenience of the thermo-sensitivity test in Well points.

Estimation of Defect Rate from the Screening Test - the case of unknown sensitivity and specificity - (스크리닝 검사로부터 불량률 추정에 관한 연구 - 알려지지 않은 민감도와 특이도의 경우 -)

  • 김태규
    • Journal of the Korean Society for Quality Management
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    • v.30 no.1
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    • pp.144-151
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    • 2002
  • Consider the problem of estimating the confidence interval of defect rate of a specified population through a screening test. Relationship between defect rate of the population and sensitivity and specificity of the screening test is discussed. More general statistical problem is introduced with the assumption of unknown imperfect specificity. An improved version of Hogan & Gladden(1978)'s estimator is proposed and discussed. Simulation studies are performed to compare the efficiency of the proposed estimator with current estimators.

Empty Can Test for Diagnosis of Supraspinatus Tear - Compare with Arthroscopic Finding - (극상근 파열에 대한 Empty Can Test의 진단적 가치 - 관절경 소견과 비교 -)

  • Moon Young Lae;You Jea Won;Kim Dong Hui
    • Clinics in Shoulder and Elbow
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    • v.4 no.1
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    • pp.13-16
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    • 2001
  • Object: To determine the sensitivity, specificity, and positive and negative predictive values of an empty can test for diagnosing supraspinatus tendon tear. Methods: We reviewed 146 patients who have shoulder pain with limited active range of motion. We evaluated patients according to empty can test. Sensitivity, specificity, and positive and negative predictive values for supraspinatus test was estimated using arthroscopic evaluation. Results: A hundred and twenty-four of 127 cases with positive empty can test had supraspinatus tendon tear. Of 19 samples with negative empty can test, 15 had no supraspinatus tear. Sensitivity, specificity, and positive and negative predictive values for the empty can test were 97.6%, 83.3%, 97.6%, and 78.9%, respectively. Conclusions: Empty can test was found to have a high sensitivity and good positive predictive value in identifying the tear of rotator cuff tendon. We concluded that empty can test of the shoulder is a reliable diagnostic method which could be used for the diagnosis of rotator cuff tear.

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