Measurement of waist circumference for retrospective studies – Prospective validation of use of CT images to assess abdominal circumference

Ciudin, A.; Salvador, Rafael; Budoy, Alex; Ciudin, Andreea; Spinu, Cristina; Diaconu, M.G.; Constantin, Vlad Denis; Sánchez, Javier; Nicolau, Carlos; Alcaraz, Antonio

doi:10.1016/j.endoen.2014.02.009

Cited by 1 publication

(1 citation statement)

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“…Abdominal circumference was determined from imaging obtained as part of the CTF-guided lumbar puncture using the technique reported previously by Ciudin et al. (9) This technique uses bi-dimensional diameters from CT imaging to estimate the perimeter of an ellipse and has been shown to accurately predict standing waist circumference (9). Body mass index (BMI) was not used as these data were incomplete for a large number of patients.…”

Section: Methodsmentioning

confidence: 99%

How common is normal cerebrospinal fluid pressure in spontaneous intracranial hypotension?

et al. 2016

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Objectives To determine the proportion of patients with spontaneous intracranial hypotension (SIH) who had a cerebrospinal fluid (CSF) pressure >6 cm HO and to investigate the clinical and imaging variables associated with CSF pressure ( P) in this condition. Methods We retrospectively reviewed 106 patients with SIH. P was measured by lumbar puncture prior to treatment. Clinical and imaging variables - including demographic data, brain imaging results, symptom duration, and abdominal circumference - were collected. Univariate and multivariate analyses were performed to determine the correlation of these variables with P. Results Sixty-one percent of patients had a P between 6 and 20 cm HO; only 34% had a P ≤6 cm HO. The factors associated with increased P included abdominal circumference ( p < 0.001), symptom duration ( p = 0.015), and the absence of brain magnetic resonance imaging findings of SIH ( p = 0.003). A wide variability in P was observed among all patients, which was not completely accounted for by the variables included in the model. Conclusions Normal CSF pressure is common in patients with SIH; the absence of a low opening pressure should not exclude this condition. Body habitus, symptom duration, and brain imaging are correlated with P measurements, but these factors alone do not entirely explain the wide variability in observed pressures in this condition and this suggests the influence of other factors.

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Section: Methodsmentioning

confidence: 99%