• 제목/요약/키워드: lumbar region

검색결과 211건 처리시간 0.021초

척추의 중심점과 Modified U-Net을 활용한 딥러닝 기반 척추 자동 분할 (Deep Learning-based Spine Segmentation Technique Using the Center Point of the Spine and Modified U-Net)

  • 임성주;김휘영
    • 대한의용생체공학회:의공학회지
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    • 제44권2호
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    • pp.139-146
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    • 2023
  • Osteoporosis is a disease in which the risk of bone fractures increases due to a decrease in bone density caused by aging. Osteoporosis is diagnosed by measuring bone density in the total hip, femoral neck, and lumbar spine. To accurately measure bone density in the lumbar spine, the vertebral region must be segmented from the lumbar X-ray image. Deep learning-based automatic spinal segmentation methods can provide fast and precise information about the vertebral region. In this study, we used 695 lumbar spine images as training and test datasets for a deep learning segmentation model. We proposed a lumbar automatic segmentation model, CM-Net, which combines the center point of the spine and the modified U-Net network. As a result, the average Dice Similarity Coefficient(DSC) was 0.974, precision was 0.916, recall was 0.906, accuracy was 0.998, and Area under the Precision-Recall Curve (AUPRC) was 0.912. This study demonstrates a high-performance automatic segmentation model for lumbar X-ray images, which overcomes noise such as spinal fractures and implants. Furthermore, we can perform accurate measurement of bone density on lumbar X-ray images using an automatic segmentation methodology for the spine, which can prevent the risk of compression fractures at an early stage and improve the accuracy and efficiency of osteoporosis diagnosis.

요추추간판탈출증에서의 굴곡신연기법에 대한 제언(提言) (Suggestion of Flexion Distraction Technique in Lumbar Herniated Intervertebral Disc(HIVD))

  • 차윤엽
    • 척추신경추나의학회지
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    • 제14권1호
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    • pp.93-98
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    • 2019
  • Objectives : This study aimed to introduce a new traction therapy and proposes that a new Chuna manual therapy technique could be implemented. Methods : The patient is placed in the prone position and their ankle is fixed to the fixing table. Next, clinicians contact on the vertebral spinal process above herniated disc region with the tissue pulled head part of scaphoid bone and the lower part of the pelvis is pulled horizontally to the foot. Conclusions : It was recently identified that traction while maintaining lumbar lordosis is more effective for lumbar disc herniation and is associated with fewer side effects. Chuna manual therapy also uses a technique of lumbar flexion-distraction manipulation to treat HIVD. further research is required.

선천성 허리헤르니아 1예 (A Case of Congenital Lumbar Hernia)

  • 이병기;김해영;조용훈;박재홍
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • 제10권2호
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    • pp.211-214
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    • 2007
  • 선천성 허리헤르니아는 12번 늑골과 장골 사이의 후복벽 요측부에 발생하는 탈장으로 매우 드문 질환이다. 출생 시부터 우측 측복부에서 덩이가 발견되었고 점차크기가 증가하여 내원한 4개월 된 남아에서 복부 초음파 검사 및 복부 전산화 단층 촬영으로 선천성 상부 허리헤르니아가 진단되었고 일차 봉합술로 완치되었기에 보고하는 바이다.

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The Effects of Kinesiotaping Applied onto Erector Spinae and Sacroiliac Joint on Lumbar Flexibility

  • Shin, Do-Yun;Heo, Ju-Young
    • The Journal of Korean Physical Therapy
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    • 제29권6호
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    • pp.307-315
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    • 2017
  • Purpose: The purpose of this study was to investigate the effects of kinesio taping on lumbar flexibility onto erector spinae and sacroiliac joint. Methods: Sixty healthy adults (male=36, female=24) participated in this study and were randomly assigned to the experimental group that received kinesio taping onto erector spinae and sacroiliac joint (n=30) or the control group that received X-letter placebo taping onto them (n=30). Lumbar flexibility (flexion, extension, lateral flexion, and rotation) was measured using back range-of-motion instrument (BROM) II before and after taping. Results: In the change of lumbar flexibility after taping in the experimental group, there were statistically significant difference in flexion, lateral flexion, and rotation (p<0.05), but there was no significant difference in extension. There was no significant difference in the change of lumbar flexibility after taping in the control group. Conclusion: In conclusion, kinesio taping onto erector spinae and sacroiliac joint improved the joint function. Kinesio taping may reduce the muscle tension and facilitate the circulation of tissue fluid. In light of these results, it is thought that the application of kinesio taping had influence on an increase in lumbar flexibility. Therefore, kinesio taping will be able to be used as the method of the prevention of pain and the treatment in the lumbar region.

노년기 남성의 칼슘 영양 상태, 육체적 활동량과 골격 대사에 관한 연구 (Dietary calcium intake, physical activity, and bone mineral density in elderly men)

  • 이명희
    • 대한가정학회지
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    • 제29권3호
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    • pp.61-69
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    • 1991
  • The relationships between nutrients intake, physical activity and bone mineral density were investigated in 19 elderly men aged 71-80 years. A trained nutritionist interviewed usual dietary intake and daily activity with a questionnaire, and bone mineral density was measured at the lumbar spine and three regions of the proximal femur (femur neck, Ward's triangle and trochanter) with a Luna DP3 dual photon absorptiometry. The correlations between dietary calcium intake and bone mineral density at the lumbar spine and trochanteric region were significant at P<0.05 and P<0.01 level respectively. the significant correlations were also found between vitamin A(P<0.005), riboflavin(P<0.01), and ascorbic acid(P<0.05) intake and bone mineral density at these sites. Higher physical activity was associated with greater bone mineral density of four sites, but this was not significant. But there were significant relationships between total energy expenditure and bone mineral density of the lumbar spine(P<0.01), femur neck (P<0.05) and Ward's triangle(P<0.05). In this study the results revealed that bone mineral density of the lumbar spine and trochanteric region were associated with dietary calcium intake. And bone mineral density of the femur neck and Ward's triangle were related to physical activity but not to nutrients intake. In conclusion, dietary calcium intake seems to be a important factor for greater bone mineral density. Further evidence will be needed that physical activity protects against bone fracture and osteoporosis in the edlerly.

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Application of Lumbar Artery Perforator Flap for Reconstruction of Back Ulcer: Clinical Study with Computed Tomographic Angiography

  • Cho, Jin-Woo;Kim, Deok-Woo;Kim, Deok-Yeol
    • Archives of Reconstructive Microsurgery
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    • 제22권2호
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    • pp.43-47
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    • 2013
  • Purpose: Un-healing and centrally located defect on back area, it is sometimes a challenge for the reconstructive surgeon. Although skin grafts are considered as the first choice for reconstruction of large skin defect on the back region, it is not always helpful but vascularized flaps provide a superior functional and aesthetic outcome. The present study was designed to investigate the clinical anatomy of the lumbar artery perforator flap to reconstruct back ulcer. Materials and Methods: Clinical anatomy study was undertaken using computed tomographic angiographic analysis. We identified the courses of lumbar arteries and its perforators, measured pedicle length by layers. The location of the perforator vessel was charted against anatomical landmarks. Results: The pedicle lengths of the third and fourth lumbar artery perforator reached a mean of 27.8 mm and 37.1 mm respectively from superficial fascia to deep fascia. The fourth perforator was more laterally located than the third perforator and less than 1 cm above the iliac crest. A case in which the fourth lumbar artery perforator was used as flap pedicle is described. Conclusion: For the reconstruction of central defect on the back area, the lumbar artery perforator flap coverage may be a good alternative option. Computed tomographic angiography can easily identify the course and location of lumbar artery perforators and can be helpful to elevate the flap successfully.

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척추 관절 질환 치료에 응용되는 추나.약물요법 중 용각교탕을 중심으로 한 임상적 고찰 (Clinical study on Chiropract-Drug treatment, Yongkakkyo-tang which is used for the treatment of arthrosis, vertebra disease)

  • 신준식
    • 한국한의학연구원논문집
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    • 제1권1호
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    • pp.289-319
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    • 1995
  • The clinical studies were performed on 301 cases who took Yongkakkyo-tang from June 1993 to December 1994 The results were as follows: 1. About 80%(239 cases) patients who took Yongkakkyo-tang were improved. 2. The ratio of male to female patients was 106:133. In the age distribution, it was found that under 20's were 8%(24/301), 30's and 40's were 33%(98/301), and over 50's was 39%(117/301). 3. In the regional distribution, it was found that Cervical region was 22 cases, thoracic region was 12 cases, cervical & lumbar region complex was 50 cases, upper limbs region was 6 cases, lower limbs region was 12 cases, and lumbar region was 153 cases(64%). 4. Among improved cases, the cases treated only with Yongkakkyo-tang were 16(5%), the cases treated with Yongkakkyo-tang, and treated with Chiropractic were 19(6%), the cases treated with Yongkakkyo-tang and Yanggun-tang chiropratic were 133(44%). 5. Among improved cases, the number of Chiropractic treatment, less then 15 teimes were 69 cases, 15 to 30 times were 91cases. Basedon these results, it was shown that Yongkakkyo-tang could be used for the treatment of degenerative disease of vertebra, and the treatment with Yongkakkyo-tang, Yanggun-tang and Chiropratic is more effective.

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만성요통 환자의 질환명에 따른 흉요추부의 관절가동범위 비교 (Comparison of Ranges of Motion in The Thoracolumbar Region for Clinical Diagnoses of Patients with Chronic Low Back Pain)

  • 이상욱;김선엽
    • 대한물리의학회지
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    • 제5권3호
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    • pp.363-373
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    • 2010
  • Purpose : The purpose of this study was to compare differences in thoracolumbar ranges of motions by comparing ratios among 4 type diagnosis for patient with chronic low back pain. Methods : The subjects were 58 chronic low back pain patients. A motion analysis program (Global Postural System) was used after photography for posture measurement. To analyze differences in mobility percentages and ratios of thoracolumbar ranges of motion, one-way ANOVA was used. Results : Regional difference spinal posture and movement were found to diagnosis patients with chronic low back pain. Comparison of thoracolumbar ranges of motion revealed significant differences in the thoracic region during forward-bending of the trunk (p<.05). In the upper thoracic region, the herniated intervertebral lumbar disc (HILD) group was significantly larger than the spinal stenosis/herniated intervertebral lumbar disc (SS/HILD) group (p<.05). In the lower thoracic region, chronic sprains (CS) were significantly greater than in the spinal stenosis (SS) group and in the (SS/HJLD) group (p<.05). Comparative analysis of thoracic/lumbar mobility ratio showed the CS group's ratio during forward bending was largest: 1.66, while the HILD group's ratio was smallest: 84 a significant difference between the two groups (p<.01). Diagnosis was not associated with difference in thoracolumbar backward-bending range of motion (p>.05). Conclusion : Theses results indicate the clinical efficacy of diagnosing for chronic low back pain by evaluating spinal mobility.

Location of Back-shu Points of the Bladder Meridian in the Lumbar Region through Patient Measurement

  • Sim, Ho-Yun;Park, Sang Kyun;Lee, Kwang Ho
    • Journal of Acupuncture Research
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    • 제35권1호
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    • pp.37-40
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    • 2018
  • Background: The purpose of this study was to compare the first branch of the bladder meridian (FBBM) as determined by the proportional bone measurement method (PBMM), to the line formed by the erector spinae muscle group, and to establish an academic basis for selection of acupuncture points and needling. Methods: Sixty participants were divided into 3 groups based on body mass index (BMI) and into 2 groups based on waist/height ratios. The distance from the midline of the spine to the first branch of the bladder meridian with PBMM (DFBBM), and the distance from the midline of the spine to the most elevated fleshy region of the erector spinae (DMEFR), at the same level as the inferior border of the spinous processes of L1-L5, were measured. The DFBBM and the 5 DMEFRs were then analyzed according to BMI and the waist/height ratio. Results: DFBBM was statistically different from DMEFR in all back-shu points in the lumbar region. DFBBM was not significantly different from DMEFR in the groups with a high BMI or waist/height ratio. However, there was a statistical difference in the groups with a low or moderate BMI or low waist/height ratio. Conclusion: Since the location of the most elevated fleshy region of the erector spinae does not coincide with the location of the FBBM, the selection of back-shu points in the lumbar region must be performed precisely by PBMM.

슬링운동이 요부안정화와 근력에 미치는 영향 (The effect of sling exercise on lumbar stabilization and muscle strength)

  • 김병곤;서현규;정연우
    • The Journal of Korean Physical Therapy
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    • 제16권4호
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    • pp.129-141
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    • 2004
  • The purpose of Lumbar Stabilization is to recover the ability of regulating movement of muscular strength, which currently becomes an essential approach to the treatment for lumbago. Sling exercise is a dynamic exercise and a method of active exercise for the patients to take part in their own treatment. This research is to develop the correlation between Lumbar Stabilization and muscular strength as well as Sling exercise. The subjects of this experiment are 12 healthy and normal male and female lasting for 4 weeks. EMG and Postural Med were used as measuring apparatuses. After experiment of 4 weeks exercises, there was not a meaningful result in the measured result of EMG(P>0.05), But there was a significant increase in the result of Postural Med after the experiment(P<0.05). According to this result, we can find out that there is a significant correlation between Sling exercise and muscular strength as well as Lumbar Stabilization. The increase in the lumbar region augments Lumbar Stabilization and the reaction speed of muscle power. So it recovers the stabilization of spine. This Sling exercise program is efficient for the treatment and prevention of back pain.

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