Cross‐sectional area reference values for sonography of nerves in the upper extremities

2019 ◽  
Vol 61 (3) ◽  
pp. 338-346 ◽  
Author(s):  
Jingwen Niu ◽  
Yi Li ◽  
Lei Zhang ◽  
Qingyun Ding ◽  
Liying Cui ◽  
...  
Keyword(s):  
Reference Values ◽  
Cross Sectional Area ◽  
Upper Extremities ◽  
Sectional Area ◽  
Cross Sectional

Cross‐sectional area reference values of the median nerve at the palm using ultrasound

2020 ◽  
Vol 62 (3) ◽  
pp. 389-392
Author(s):  
Nikita Jain ◽  
Eduardo Cortez‐Garcia ◽  
Michael S. Cartwright
Keyword(s):  
Median Nerve ◽  
Reference Values ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional

Reference Values for Acoustic Rhinometry in Subjects without Nasal Symptoms

1998 ◽  
Vol 12 (5) ◽  
pp. 341-344 ◽  
Author(s):  
Eva Millqvist ◽  
Mats Bende
Keyword(s):  
Body Mass Index ◽  
Body Mass ◽  
Reference Values ◽  
Cross Sectional Area ◽  
Acoustic Rhinometry ◽  
Sectional Area ◽  
Cross Sectional ◽  
Nasal Symptoms

Reference values for acoustic rhinometry are presented from 334 individuals without nasal symptoms between 4 years and 61 years old. There was a significant correlation between the minimal cross-sectional area (MCA) and nasal volume. Although the reproducibility of the method was good, the MCA varied widely. MCA correlated weakly to weight, height, age, and body mass index. Our data suggest that acoustic rhinometry is valuable for inter-individual comparisons.

scholarly journals Antenatal sonographic assessment of cross sectional area of umbilical cord components and its reference value in normal pregnancy

2018 ◽  
Vol 7 (10) ◽  
pp. 3924
Author(s):  
Khizer Hussain Afroze ◽  
Lakshmiprabha Subash ◽  
Anand S. H.
Keyword(s):  
Pregnant Women ◽  
Umbilical Cord ◽  
Reference Values ◽  
Gestational Age ◽  
Umbilical Vein ◽  
Cross Sectional Area ◽  
Wharton’S Jelly ◽  
Sectional Area ◽  
Cross Sectional ◽  
Wharton's Jelly

Background: Measuring the cross-sectional area of umbilical components in normal pregnant women helps in assessing the fetal abnormalities. Very few literatures were available on evaluation of reference values of cross sectional areas of umbilical cord components. The present study was conducted with the aim to determine the normal reference values of cross sectional areas of umbilical arteries, umbilical vein and Wharton’s jelly and to correlate them with the gestational age of the fetus.Methods: A cross sectional study was conducted on 300 normal pregnant women at the Department of Radiodiagnosis, Sri Siddhartha Medical College, Tumakuru, Karnataka to assess the reference range of cross sectional areas of umbilical cord arteries, umbilical vein and Wharton’s jelly at different gestational age of the fetus to analyze their growth.Results: A statistically significant correlation was observed between cross sectional areas of umbilical artery and vein and gestational age before and after 34 weeks (p=0.005 and 0.006 respectively) but no significant correlation was noticed with the cross-sectional area of Wharton’s jelly (p=0.088).Conclusions: Cross sectional area measurements of umbilical cord components can be considered as important tools for estimation of fetal growth.

Cross sectional area reference values for sonography of peripheral nerves and brachial plexus

2013 ◽  
Vol 124 (9) ◽  
pp. 1881-1888 ◽  
Author(s):  
Antonios Kerasnoudis ◽  
Kalliopi Pitarokoili ◽  
Volker Behrendt ◽  
Ralf Gold ◽  
Min-Suk Yoon
Keyword(s):  
Brachial Plexus ◽  
Reference Values ◽  
Peripheral Nerves ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional

Cross-sectional Area of the Median Nerve Before Revision Carpal Tunnel Release—A Cross-sectional Study

2017 ◽  
Vol 14 (1) ◽  
pp. 20-25 ◽  
Author(s):  
Stephan Duetzmann ◽  
Suleyman Tas ◽  
Volker Seifert ◽  
Gerhard Marquardt ◽  
Thomas Dombert ◽  
...  
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Reference Values ◽  
Carpal Tunnel ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional ◽  
Large Patient ◽  
Tunnel Syndrome ◽  
The Mean

Abstract BACKGROUND High-resolution ultrasound can be used for diagnosis of carpal tunnel syndrome with an equal accuracy to electrodiagnostic studies. Up to date there has been no investigation published that examined the median nerve in a large patient cohort with recurrent or persistent symptoms. Reference and cutoff values are lacking. OBJECTIVE To provide reference values for detection of ongoing or recurrent compression in patients with recurring or persisting symptoms in carpal tunnel syndrome. METHODS One hundred and sixteen patients undergoing revision decompression of the median nerve at the carpal tunnel between January 2010 and October 2015 were studied retrospectively to determine the cross-sectional area of the median nerve at the wrist by the technique of neurosonography. RESULTS In cases of insufficient primary release, the mean cross-sectional area was 20.0 mm2 preop. In cases of scar or synovitis, the mean cross-sectional area was 17.0 mm2 (significantly less than in cases of insufficient primary release, P = .008). Compared to successfully operated patients with de novo carpal tunnel syndrome (n = 74), a cutoff value of 14.5 mm2 yielded a sensitivity of 78% and a specificity of 97% to diagnose ongoing or recurrent compression in case of a typical clinical presentation of ongoing or recurrent symptoms (tested via comparison of patients who are symptom free vs patients with symptoms). CONCLUSION For the first time, we provide reference values in patients with recurring or persisting symptoms in carpal tunnel syndrome based on a large patient population. Ultrasound can aid in the evaluation of patients with entrapment neuropathy of the median nerve and recurring or persisting symptoms.

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 Estimation of ultrasound reference values for the ulnar nerve fascicular number and cross-sectional area in young males

Medicine ◽  
2017 ◽  
Vol 96 (10) ◽  
pp. e6204 ◽  
Author(s):  
Mohamed Abdelmohsen Bedewi ◽  
Ahmed M.M. Yousef ◽  
Amr Adel Abd-Elghany ◽  
Mohamed Sherif el-sharkawy ◽  
Ezzat M. Awad
Keyword(s):  
Ulnar Nerve ◽  
Reference Values ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional ◽  
Young Males
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