Can diffusion tensor imaging and tractography represent cross-sectional area of lumbar multifidus in patients with LUMBAR spine disease?

2017 ◽  
Vol 57 (2) ◽  
pp. 200-205 ◽  
Author(s):  
Jeehae Oh ◽  
Joon-Yong Jung ◽  
Young Jin Ko
Keyword(s):  
Diffusion Tensor Imaging ◽  
Lumbar Spine ◽  
Diffusion Tensor ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional ◽  
Lumbar Multifidus ◽  
Spine Disease

Role of diffusion tensor imaging in the evaluation of ulnar nerve involvement in leprosy

2021 ◽  
pp. 20210290
Author(s):  
Ankita Aggarwal ◽  
Chandan Jyoti Das ◽  
Neena Khanna ◽  
Raju Sharma ◽  
Deep Narayan Srivastava ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
Peripheral Neuropathy ◽  
Ulnar Nerve ◽  
Diffusion Tensor ◽  
Cross Sectional Area ◽  
Ulnar Neuropathy ◽  
Control Group ◽  
Sectional Area ◽  
Cross Sectional

Objective: Early detection of peripheral neuropathy is extremely important as leprosy is one of the treatable causes of peripheral neuropathy. The study was undertaken to assess the role of diffusion tensor imaging (DTI) in ulnar neuropathy in leprosy patients. Methods: This was a case–control study including 38 patients (72 nerves) and 5 controls (10 nerves) done between January 2017 and June 2019. Skin biopsy proven cases of leprosy, having symptoms of ulnar neuropathy (proven on nerve conduction study) were included. MRI was performed on a 3 T MR system. Mean cross-sectional area, fractional anisotropy (FA) and apparent diffusion coefficient (ADC) values of ulnar nerve at cubital tunnel were calculated. Additional ancillary findings and appearance of base sequences were evaluated. Results: Ulnar nerve showed thickening with altered T2W signal in all the affected nerves, having an average cross-sectional area of 0.26 cm2. Low FA with mean of 0.397 ± 0.19 and high ADC with mean of 1.28 ± 0.427 x 10 −3 mm2/s of ulnar nerve in retrocondylar groove was obtained. In the control group, mean cross-sectional area was 0.71cm2 with mean FA and ADC of 0.53 ± 0.088 and 1.03 ± 0.24 x 10 −3 mm2/s respectively. Statistically no significant difference was seen in diseased and control group. Cut-off to detect neuropathy for FA and ADC is 0.4835 and 1.1020 × 10 −3 mm2/s respectively. Conclusion: DTI though is challenging in peripheral nerves, however, is proving to be a powerful complementary tool for assessment of peripheral neuropathy. Our study validates its utility in infective neuropathies. Advances in knowledge: 1. DTI is a potential complementary tool for detection of peripheral neuropathies and can be incorporated in standard MR neurography protocol. 2. In leprosy-related ulnar neuropathy, altered signal intensity with thickening or abscess of the nerve is appreciated along with locoregional nodes and secondary denervation changes along with reduction of FA and rise in ADC value. 3. Best cut-offs obtained in our study for FA and ADC are 0.4835 and 1.1020 × 10 −3 mm2/s respectively.

Effects of Lumbar Stabilization Exercises with Real-Time Ultrasound Imaging Biofeedback on Lumbar Multifidus Muscle Cross-Sectional Area in Individuals with Chronic Nonspecific Low Back Pain: A Study Protocol for a Randomized Controlled Trial

2021 ◽  
Author(s):  
Sarafadeen Raheem ◽  
Sokunbi O. Ganiyu ◽  
Aminu A. Ibrahim ◽  
Anas Ismail ◽  
Mukadas O. Akindele ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Cross Sectional Area ◽  
Low Back ◽  
Sectional Area ◽  
Multifidus Muscle ◽  
Cross Sectional ◽  
Lumbar Multifidus ◽  
Lumbar Stabilization ◽  
Lumbar Multifidus Muscle

Abstract Background: Impairments in the lumbar multifidus muscle such as reduced muscle thickness and fat infiltrations are evident in individuals with low back pain. Lumbar stabilization exercises (LSE) with real-time ultrasound imaging (RUSI) biofeedback has been reported to improve preferential activation of as well as retention in the ability to activate of the lumbar multifidus muscle, thus enhancing recovery. However, the effects of using this treatment approach in individuals with nonspecific chronic low back pain (NCLBP) seemed not to have widely reported. The purpose of this study is, therefore, to investigate the effects of LSE with RUSI biofeedback on lumbar multifidus muscle cross-sectional area in individuals with NCLBP patients. Method: This study is a prospective, single-center, assessor-blind three-arm, randomized controlled to be conducted at National Orthopedic Hospital, Kano State, Nigeria. Ninety-one individuals with NCLBP will be randomly assigned into one of the three treatment groups of equal sample size (n = 30); LSE group, LSE with RUSI biofeedback group, or control (minimal intervention). The participants in the LSE and LSE with RUSI biofeedback group will also receive the same intervention as the control group. All participants will receive treatment twice weekly for 8 weeks. The primary outcome will be lumbar multifidus muscles cross-sectional area while the secondary outcomes will be pain, functional disability and quality of life. All outcomes will be assessed at baseline, and at 8 weeks and 3 months post-intervention.Discussion: The outcome of the study may support the evidence for the effectiveness of LSE with RUSI biofeedback in the rehabilitation of individuals with NCLBP. It may also provide a rationale for the physiotherapists to make use of diagnostic ultrasound as a feedback mechanism in enhancing the performance and retention of LSE program as well as monitoring the patient’s recovery.Trial registration: Pan African Clinical Trials Registry, (PACTR201801002980602), Registered on 16 January 2018.

scholarly journals Evaluation of Diffusional Characteristics and Microstructure in Unilateral Vocal Fold Paralysis Using Diffusion Tensor Imaging

2019 ◽  
pp. 014556131987472
Author(s):  
Jie Cai ◽  
Logan Klein ◽  
Pinhong Wu ◽  
Azure Wilson ◽  
Xinlin Xu ◽  
...  
Keyword(s):  
Vocal Fold ◽  
Diffusion Tensor ◽  
Vocal Fold Paralysis ◽  
Cross Sectional Area ◽  
Control Group ◽  
Sectional Area ◽  
Unilateral Vocal Fold Paralysis ◽  
Cross Sectional ◽  
Injury Group ◽  
The Cross

Objective: To investigate the value of diffusion tensor imaging (DTI) in the evaluation of vocal fold tissue microstructure after recurrent laryngeal nerve (RLN) injury. Methods: Six canines were divided into 2 groups: a unilateral vocal fold paralysis group (n = 4) and a control group (n = 2). The RLN was cut in the unilateral vocal fold paralysis group, and no intervention was applied in the control group. After 4 months, the canines’ larynges were removed and placed in a small animal magnetic resonance imaging (MRI) system (9.4T BioSpec MRI; Bruker, Germany). After scanning, the vocal folds were isolated, sectioned, and stained. The slides were then analyzed for the cross-sectional area and muscle fiber density through feature extraction technology. Pearson correlation analysis was performed on the DTI scan and histological section extraction results. Results: In the vocal fold muscle layer, the fractional anisotropy (FA) of the unilateral RLN injury group was higher than that of the control group, and the Tensor Trace was lower than that of the control group. This difference was statistically significant, P < .05. In the lamina propria, the FA of the unilateral RLN injury group was lower than that of the control group, P > .05, and the Tensor Trace was lower than that of the control group, P < .05. The muscle fiber cross-sectional area of the RLN injury group was significantly smaller than the control group with statistical significance, P < .05, and the density of muscle fibers was lower, P < .05. The correlation coefficient between FA and the cross-sectional area was −0.838, P = .002, and .726; P = .017 between Tensor Trace and the cross-sectional area. Conclusion: Diffusion tensor imaging is an effective method to assess the changes in the microstructure of atrophic vocal fold muscle tissue after RLN injury.

Cross-Sectional Area of the Lumbar Spine Trunk Muscle and Posterior Lumbar Interbody Fusion Rate

2017 ◽  
Vol 30 (6) ◽  
pp. E798-E803 ◽  
Author(s):  
Man Kyu Choi ◽  
Sung Bum Kim ◽  
Chang Kyu Park ◽  
Hridayesh P. Malla ◽  
Sung Min Kim
Keyword(s):  
Lumbar Spine ◽  
Interbody Fusion ◽  
Posterior Lumbar Interbody Fusion ◽  
Fusion Rate ◽  
Trunk Muscle ◽  
Cross Sectional Area ◽  
Lumbar Interbody Fusion ◽  
Sectional Area ◽  
Cross Sectional

scholarly journals High Rates of Overuse-Related Structural Abnormalities in the Lumbar Spine of Youth Competitive Alpine Skiers: A Cross-sectional MRI Study in 108 Athletes

2020 ◽  
Vol 8 (5) ◽  
pp. 232596712092255 ◽  
Author(s):  
Loris Peterhans ◽  
Stefan Fröhlich ◽  
Christoph Stern ◽  
Walter O. Frey ◽  
Mazda Farshad ◽  
...  
Keyword(s):  
Lumbar Spine ◽  
Disc Degeneration ◽  
Height Growth ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Mri Findings ◽  
Cross Sectional ◽  
Pars Interarticularis ◽  
Structural Abnormalities ◽  
Alpine Skiers

Background: Alpine ski racing is known as a sport with unfavorable spinal loads and high rates of back overuse injuries at the elite level. However, little is known about overuse-related structural abnormalities occurring in the spine of youth athletes. Purpose: To describe the prevalence of abnormal magnetic resonance imaging (MRI) findings in the lumbar spine of youth competitive alpine skiers within the U16 category (under 16 years) with respect to sex, height growth, multifidus size, increasing age, and clinical relevance. Study Design: Cross-sectional study; Level of evidence, 3. Methods: A total of 108 youth competitive alpine skiers aged 13 to 15 years underwent MRI examination of the lumbar spine and measurement of the multifidus cross-sectional area on a 3-T Magnetom Prisma scanner. Complementary assessments included the determination of anthropometrics and biological maturation. Athletes were classified as symptomatic when, pursuant to the Oslo Sports Trauma Research Center questionnaire on health problems, at least 1 substantial back overuse–related health problem episode had been registered during the 12 months before the MRI examination. Results: Of the analyzed youth skiers, 37.0% presented with ≥1 abnormal MRI finding in the lumbar spine. The most prevalent findings in both sexes were disc degeneration (23.1%), Schmorl nodes (19.4%), end plate changes (10.2%), and pars interarticularis anomalies (10.2%); the pars interarticularis anomalies occurred exclusively in males. A smaller relative lumbar multifidus cross-sectional area was related to more frequent occurrence of disc protrusions ( P = .018; R2 = 0.116) and end plate changes ( P = .024; R2 = 0.096). Overall, the occurrence of abnormal MRI findings in the lumbar spine increased with age ( P = .034; R2 = 0.054). Disc degeneration (particularly disc dehydration and disc protrusion) were significantly more prevalent in symptomatic versus asymptomatic athletes ( P < .05 for all). Conclusion: As early as age 15 years or younger, competitive alpine skiers demonstrated distinct overuse-related structural abnormalities in the lumbar spine, with some of them being clinically relevant and restrictive of sports participation. As sex, height growth, multifidus size, and increasing age seem to play an important role for the occurrence of such abnormalities, considering these factors might be essential for prevention.

Multiplying linear dimension techniques may predict the cross-sectional area of multifidus muscle at all levels of lumbar spine

2012 ◽  
Vol 25 (3) ◽  
pp. 171-176 ◽  
Author(s):  
Maryamsadat Larrie-Baghal ◽  
Amir H. Bakhtiary ◽  
Asghar Rezasoltani ◽  
Rozita Hedayati ◽  
Raheb Ghorbani
Keyword(s):  
Lumbar Spine ◽  
Linear Dimension ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Multifidus Muscle ◽  
Cross Sectional ◽  
The Cross

scholarly journals Comparison of MRI cross-sectional area and functions of core muscles among asymptomatic individuals with and without lumbar intervertebral disc degeneration

2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Gyeong-tae Gwak ◽  
Ui-jae Hwang ◽  
Sung-hoon Jung ◽  
Hyun-a Kim ◽  
Jun-hee Kim ◽  
...  
Keyword(s):  
Lumbar Spine ◽  
Intervertebral Disc ◽  
Disc Degeneration ◽  
Intervertebral Disc Degeneration ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Endurance Test ◽  
Cross Sectional ◽  
Significant Difference ◽  
Asymptomatic Individuals

Abstract Background Previous studies suggested that patients with symptomatic intervertebral disc degeneration (IDD) of lumbar spine have reduced cross-sectional area (CSA) and functions of core muscles. However, reduced CSA and functions of core muscles have been observed not only in patients with symptomatic IDD but also in patients with other subgroups of low back pain (LBP). Thus, it is uncertain whether reduced CSA and functions of core muscles lead to IDD and LBP, or pain leads to reduced CSA and functions of core muscles in patients with symptomatic IDD. Therefore, this study aimed to compare the CSA and functions of core muscles between asymptomatic participants with and without IDD in magnetic resonance imaging (MRI). Methods Twenty asymptomatic participants (12 men and 8 women) participated in this study. Ten participants had asymptomatic IDD at L4–5. The others were healthy controls (without IDD at all levels of lumbar spine). The CSA of core muscles was measured using MRI. Maximal isometric trunk flexor strength and side bridge strength were measured by a Smart KEMA strength sensor. Trunk flexor endurance test, side bridge endurance test and plank endurance test were used to measure core endurance. Double legs loading test was used to measure core stability. Mann-Whitney U test was used to compare the differences between two groups. Results There were no significant differences in core muscle functions between the two groups (p > 0.05). Moreover, there was no significant difference in CSA between the two groups (p > 0.05). Conclusions There was no significant difference in CSA and core muscle functions between asymptomatic participants with and without IDD. These findings indicate that a degenerative or bulging disc in asymptomatic individuals has little effect on CSA and functions of core muscles, especially in young age. Therefore, the general core endurance test or strength test could not differentiate asymptomatic people with and without IDD of lumbar spine. Trial registration number Clinical Research information Service. KCT0004061. Registered 13 June 2019. retrospectively registered.

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