scholarly journals Role of High-Resolution Ultrasonography in Evaluation of Median Nerve and Thickness of Flexor Retinaculum in Patients with Hypothyroidism

2020 ◽  
Vol 2 ◽  
pp. 36-43
Author(s):  
Kunwar Pal Singh ◽  
Kamlesh Gupta ◽  
Iqbaljit Kaur ◽  
Vijinder Arora
Keyword(s):  
High Resolution ◽  
Healthy Volunteers ◽  
Median Nerve ◽  
Cross Sectional Area ◽  
Width Ratio ◽  
Sectional Area ◽  
Cross Sectional ◽  
Flexor Retinaculum ◽  
Nerve Fascicle ◽  
High Resolution Ultrasonography

Objectives: To determine the role of high resolution ultrasonography in evaluation of cross sectional area, maximum nerve fascicle thickness and thickness/width ratio of the median nerve and flexor retinaculum thickness in patients with hypothyroidism and to correlate it with the healthy volunteers. Material and Methods: A prospective study was conducted from February 2018 to October 2019 on 62 patients which included 32 clinically proven cases of hypothyroidism and 30 healthy volunteers. High resolution ultrasonography was performed using high frequency linear probes. Results: The most affected parameter was cross sectional area of median nerve at three levels, inlet/outlet ratio of CSA of the median nerve and thickness of flexor retinaculum in hypothyroidism patients in correlation with healthy volunteers. These parameters showed statistically significant p values. Maximum nerve fascicle thickness and thickness/width ratio of the median nerve showed no statistical significance in hypothyroid patients in correlation with healthy volunteers. Conclusion: High-resolution ultrasonography plays an important role in evaluating the changes occuring in cross sectional area of the median nerve, its inlet/outlet CSA ratio and flexor retinaculum thickness in hypothyroidism patients as correlated with the healthy volunteers.

scholarly journals Influence of occupation on median nerve cross-sectional area in apparently healthy volunteers

2017 ◽  
Vol 10 (3) ◽  
pp. 292
Author(s):  
BenjaminEffiong Udoh ◽  
AnthonyChukwuka Ugwu ◽  
AlhajiModu Ali ◽  
Mohammed Abba ◽  
Emmanuel Buba ◽  
...  
Keyword(s):  
Healthy Volunteers ◽  
Median Nerve ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional ◽  
Apparently Healthy

Carpal Tunnel Syndrome Assessment with US: Value of Additional Cross-sectional Area Measurements of the Median Nerve in Patients versus Healthy Volunteers

Radiology ◽  
2009 ◽  
Vol 250 (1) ◽  
pp. 171-177 ◽  
Author(s):  
Andrea S. Klauser ◽  
Ethan J. Halpern ◽  
Tobias De Zordo ◽  
Gudrun M. Feuchtner ◽  
Rohit Arora ◽  
...  
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Healthy Volunteers ◽  
Median Nerve ◽  
Carpal Tunnel ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional ◽  
Tunnel Syndrome

Anatomical Relations in the Carpal Tunnel: A Computed Tomographic Study

1987 ◽  
Vol 12 (1) ◽  
pp. 1-4
Author(s):  
W. JESSURUN ◽  
B. HILLEN ◽  
F. ZONNEVELD ◽  
A. J. C. HUFFSTADT ◽  
J. W. F. BEKS ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Median Nerve ◽  
Carpal Tunnel ◽  
Cross Sectional Area ◽  
Neutral Position ◽  
Sectional Area ◽  
Cross Sectional ◽  
Computed Tomographic ◽  
Flexor Retinaculum ◽  
The Cross

Computed tomography of the carpal tunnel was performed in the hands of both patients and controls in a neutral position, in flexion and in extension. The median nerve was not compressed between the long flexors and the flexor retinaculum in either flexion or extension of the wrist. In flexion, the nerve usually moved dorsally, away from the flexor retinaculum. No difference could be found between the cross-sectional area of the carpal tunnel between patients and controls.

scholarly journals Reference values for the cross-sectional area of the normal sciatic nerve using high-resolution ultrasonography

2021 ◽  
Vol 21 (85) ◽  
pp. e95-e104
Author(s):  
Kunwar Pal Singh ◽  
◽  
Prabhjot Singh ◽  
Kamlesh Gupta
Keyword(s):  
High Resolution ◽  
Sciatic Nerve ◽  
Reference Values ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional ◽  
The Mean ◽  
Sciatic Nerves ◽  
The Cross ◽  
High Resolution Ultrasonography

Aim: High-resolution ultrasonography is a new and promising technique to evaluate peripheral and spinal nerves. Its validity as a diagnostic tool in neurological diseases has been demonstrated in adults. The aims of study were to establish the reference values for the cross-sectional area of the normal sciatic nerve on high-resolution ultrasonography, and to determine the relationship between the cross-sectional area of the normal sciatic nerve and the subjects’ age, gender, height (in cm), weight (in kg), and body mass index. Material and methods: Two hundred subjects of both genders and above 18 years of age were studied with high-resolution ultrasonography. The subjects had no history of peripheral neuropathy or trauma to the lower limb. The cross-sectional areas of the normal sciatic nerves were obtained at two different levels in both lower limbs. The mean cross-sectional areas of the sciatic nerves were measured at two different levels, one located at 1 cm above the bifurcation of the sciatic nerve into the tibial and common peroneal nerves, and the other 4 cm above the bifurcation of the sciatic nerve into the tibial and common peroneal nerves. Results: A positive correlation of the mean cross-sectional area was established with height, weight, and body mass index. Women had smaller cross-sectional areas of the normal sciatic nerves than men at both measuring sites. No significant relationship was established with the age of the subjects. Conclusions: The established reference values of the cross-sectional area of the sciatic nerve can facilitate the analysis of pathological nerve conditions.

scholarly journals Analysis of the increase in cross-sectional area of the median nerve and its relation to age in neonates, infants and children using high-resolution ultrasound imaging

2020 ◽  
Author(s):  
Carole Jenny ◽  
Jürg Lütschg ◽  
Philip J. Broser
Keyword(s):  
High Resolution ◽  
Median Nerve ◽  
Cross Sectional Study ◽  
Cross Sectional Area ◽  
Infants And Children ◽  
Normative Values ◽  
Ultrasound Images ◽  
List Type ◽  
Sectional Area ◽  
Cross Sectional

ABSTRACTAIMTo analyze the increase in the cross-sectional area (CSA) of the median nerve during early childhood.METHODThis prospective, cross-sectional study used high-resolution ultrasound images of the median nerve from three locations (wrist, forearm and upper arm). A total of 43 participants (32 of whom were children younger than 2 years) were included in the study.RESULTSA strong and highly significant correlation was found between age and CSA (r = 0.8, p < 0.0001). The growth rate of CSA decreases with age. The increase in CSA follows a logarithmic growth curve (p < 0.0001). Based on the regression analysis, an age-synchronous increase in CSA for all three locations was found. The nerve reaches 70% of its final CSA by 2 years of age.INTERPRETATIONSimilar to the nerve conduction speed, the increase in CSA is greatest during the first 2 years of life. Then, the rate gradually and synchronously slows at the proximal and distal locations.What this paper adds-Normative values for increased cross-sectional area (CSA) of the median nerve.-Standardized locations and image procedures outlined for the clinical setting.-Growth dynamic of the CSA of the median nerve in children.-Normative data for development of the median nerve in children.-High resolution ultrasound images of the maturating median nerve in neonates, infants and children.

Poster 125: Kim and Joo Index: The Ratio of Cross-Sectional Area of the Median Nerve to Cross-Sectional Area of Carpal Tunnel in Korean Healthy Volunteers

PM&R ◽  
2010 ◽  
Vol 2 ◽  
pp. S60-S60
Author(s):  
HyoungSeop Kim ◽  
HyungKeun Cho ◽  
Zee-A Han ◽  
SeungHo Joo ◽  
YongWook Kim ◽  
...  
Keyword(s):  
Healthy Volunteers ◽  
Median Nerve ◽  
Carpal Tunnel ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional

scholarly journals Reference values for the cross-sectional area of normal radial nerve at two levels using high-resolution ultrasonography

2021 ◽  
Vol 21 (85) ◽  
pp. e112-e126
Author(s):  
Kunwar Pal Singh ◽  
◽  
Achal Singh Goindi ◽  
Kamlesh Gupta
Keyword(s):  
High Resolution ◽  
Reference Values ◽  
Radial Nerve ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional ◽  
Level 1 ◽  
The Cross ◽  
High Resolution Ultrasonography ◽  
Level 2

Aim of the study: High-resolution ultrasound is less often used to evaluate the radial nerves. The radial nerve is often involved in entrapment syndromes. The aim of the study is to establish the reference values for the cross-sectional area of the normal radial nerve on high-resolution ultrasonography, and to identify relationships between the cross-sectional area and the subject’s age, gender, height, weight, body mass index, and hand dominance. Material and methods: The study was conducted on 200 subjects of both sexes, between 18 and 75 years of age, who did not have history of peripheral neuropathy or trauma to the upper limb. Highresolution real-time sonographic examination of the radial nerves was performed in both arms at two different levels. Level 1 was taken just proximal to the nerve bifurcation, and level 2 just after the nerve exits the spiral grove. Results: The mean cross-sectional area measured at level 2 (4.3 ± 0.4 mm2) was greater than that measured at level 1 (2.3 ± 0.3 mm2). No significant relationship was seen with age and hand dominance (p >0.05), but the cross-sectional area values at above mentioned levels were larger in males than in females (p <0.05). In addition, the cross-sectional areas of the radial nerves showed a positive correlation with height, weight, and body mass index (p <0.05). Conclusion: The established ultrasonographic reference values along with basic clinical data will aid in the diagnosis, response to treatment, and prognostic evaluation of peripheral neuropathies.

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