Measurement of Anal Cross-Sectional Area and Pressure during Anal Distension in Healthy Volunteers

Digestion ◽  
1991 ◽  
Vol 48 (2) ◽  
pp. 61-69 ◽  
Author(s):  
H. Gregersen ◽  
S. Sørensen ◽  
S.M. Sørensen ◽  
S. Rittig ◽  
A.J. Andersen
Keyword(s):  
Healthy Volunteers ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional

Cross-sectional area of the posterior extensor muscles of the cervical spine in whiplash injury patients versus healthy volunteers – 10year follow-up MR study

Injury ◽  
2012 ◽  
Vol 43 (6) ◽  
pp. 912-916 ◽  
Author(s):  
Morio Matsumoto ◽  
Daisuke Ichihara ◽  
Eijiro Okada ◽  
Kazuhiro Chiba ◽  
Yoshiaki Toyama ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Healthy Volunteers ◽  
Whiplash Injury ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional ◽  
Extensor Muscles ◽  
Mr Study

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

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.

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

Magnetic Resonance Angiography Shows Dilatation of the Middle Cerebral Artery after Infusion of Glyceryl Trinitrate in Healthy Volunteers

Cephalalgia ◽  
2007 ◽  
Vol 27 (2) ◽  
pp. 118-127 ◽  
Author(s):  
JM Hansen ◽  
DL Pedersen ◽  
VA Larsen ◽  
M Sánchez-del-Rio ◽  
JR Alvarez Linera ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Magnetic Resonance Angiography ◽  
Glyceryl Trinitrate ◽  
Middle Cerebral Artery ◽  
Healthy Volunteers ◽  
Cerebral Artery ◽  
Observer Variation ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional

Previous studies have reported dilatation of the middle cerebral artery (MCA) during acute glyceryl trinitrate (GTN)-induced headache, using imaging techniques such as transcranial Doppler (TCD), positron emission tomography (PET) and single photon emission computerized tomography (SPECT). In the present study we aimed to evaluate whether magnetic resonance angiography (MRA) may be used to examine the effect of GTN on the MCA, with respect to changes in diameter and cross-sectional area in healthy volunteers. In addition, we wanted to determine the intra- and inter-observer variation of the method. In a randomized, double blind, crossover study 12 healthy volunteers received intravenous infusion of GTN (0.5 μg/kg/min for 20 min) or placebo. Using 1.5 Tesla MRA, we recorded changes in the diameter and cross-sectional area of MCA before, during and after infusion of GTN. The MRA images were evaluated by two blinded, independent observers/neuroradiologists. The primary endpoints were the differences in the AUC for diameter and cross-sectional area of the MCA between the two experimental conditions and the intra- and inter-observer variation. The areas under the curve (AUC) of the MCA diameter and cross-sectional area were significantly greater after GTN than after placebo ( P < 0.05). The intra-observer variation (day-to-day) at baseline was 8.3% and 10.9% for the two observers. The mean inter-observer variation of the cross-sectional MCA area was 15.5% and for the diameter measurements 8%. The present study shows that the MRA method gives a reliable semi-quantitative index of the vascular changes in the intra-cerebral arteries after infusion of GTN and may be useful for headache research.

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

Pelvic Canal Narrowing Caused by Triple Pelvic Osteotomy in the Dog

1994 ◽  
Vol 07 (03) ◽  
pp. 110-113 ◽  
Author(s):  
D. L. Holmberg ◽  
M. B. Hurtig ◽  
H. R. Sukhiani
Keyword(s):  
Postoperative Complications ◽  
Pelvic Osteotomy ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional ◽  
Canal Width ◽  
Operative Complications ◽  
Post Operative Complications

SummaryDuring a triple pelvic osteotomy, rotation of the free acetabular segment causes the pubic remnant on the acetabulum to rotate into the pelvic canal. The resulting narrowing may cause complications by impingement on the organs within the pelvic canal. Triple pelvic osteotomies were performed on ten cadaver pelves with pubic remnants equal to 0, 25, and 50% of the hemi-pubic length and angles of acetabular rotation of 20, 30, and 40 degrees. All combinations of pubic remnant lengths and angles of acetabular rotation caused a significant reduction in pelvic canal-width and cross-sectional area, when compared to the inact pelvis. Zero, 25, and 50% pubic remnants result in 15, 35, and 50% reductions in pelvic canal width respectively. Overrotation of the acetabulum should be avoided and the pubic remnant on the acetabular segment should be minimized to reduce postoperative complications due to pelvic canal narrowing.When performing triple pelvic osteotomies, the length of the pubic remnant on the acetabular segment and the angle of acetabular rotation both significantly narrow the pelvic canal. To reduce post-operative complications, due to narrowing of the pelvic canal, overrotation of the acetabulum should be avoided and the length of the pubic remnant should be minimized.

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