BACKGROUND Hippocampal atrophy is a well-known feature of Alzheimer's disease (AD), but sensitivity and specificity of hippocampal volumetry are limited. Neuropathological studies have shown that hippocampal subfields are differentially vulnerable to AD; hippocampal subfield volumetry may thus prove to be more accurate than global hippocampal volumetry to detect AD. METHODS CA1, subiculum and...

MRI-based hippocampus volume, a core feasible biomarker of Alzheimer's disease (AD), is not yet widely used in clinical patient care, partly due to lack of validation of software tools for hippocampal volumetry that are compatible with routine workflow. Here, we evaluate fully-automated and computationally efficient hippocampal volumetry with FSL-FIRST for prediction of AD dementia (ADD) in sub...

There are very few reports on pancreatic volumetry using multidetector-row computed tomography (MDCT). In the present study, we performed pancreatic volumetry for 148 patients who had undergone pancreatectomy at this institution between June 2006 and May 2011 and for 50 patients who had undergone laparoscopic cholecystectomy (LC) for cholecystolithiasis with no choledocholithiasis between Janua...

BACKGROUND The purpose of this study was to test the stereology method using several grid sizes for measuring liver volume and to find which grid provides an accurate estimate of liver volume. MATERIALS AND METHODS Liver volume was measured by volumetry in 41 sets of liver MRI. MRI was performed before and after different weight-reducing regimens. Grids of 3, 4, 5, and 6 cm were used to measu...

CONTEXT The treatment of edema after a knee injury is usually 1 of the main objectives during rehabilitation. To assess the success of treatment, 2 methods are commonly used in clinical practice: volumetry and perimetry. OBJECTIVE To investigate the intra- and interassessor reliability of volumetry and perimetry to assess knee volume. DESIGN Cross-sectional. SETTING Laboratory. PARTICIP...

Volume changes can be measured either directly by water-displacement volumetry or by various indirect methods in which calculation of the volume is based on circumference measurements. The aim of the present study was to determine the most appropriate indirect method for lower leg volume calculation using water displacement volumetry as a 'golden standard'. For 20 male volunteers, age range: 20...

AIMS The aim of our study was to define the optimal geometric model for two-dimensional volumetry of the right ventricle and its clinical validation. METHODS AND RESULTS It has been shown in previous reports that an ellipsoidal shell model best reflects the complex right ventricular geometry. We investigated 82 patients without tricuspid regurgitation and intracardiac shunt. Measurements of r...

T he following comments pertain to " Biophysical characteristics of hyaluronic acid soft-tissue fillers and their relevance to aesthetic applications " by Sundaram and Cas-suto 1 and " Cohesive polydensified matrix hyaluronic acid for fine lines " by Sundaram and Fagien. 2 According to the authors' conceptualization, definition of " superficial flow volumetry " is " soft, spreading filler that ...

OBJECTIVES It has been shown that atrophy of medial temporal lobe structures such as the hippocampus and entorhinal cortex shown on MRI may distinguish patients with Alzheimer's disease from healthy controls. However, the diagnostic value of visual inspection and volumetry of medial temporal lobe atrophy (MTA) on MRI in a clinical setting is insufficiently known. METHODS Medial temporal lobe ...

BACKGROUND AND PURPOSE The atrophy of the caudate is considered the hallmark of HD-associated neurodegeneration and has high potential as a biomarker in structural MR imaging. This study aimed at comparing automated and manual caudate volumetry. MATERIALS AND METHODS In this cross-sectional volumetric study in 40 patients with HD and 30 healthy controls, a fully automated caudate measurement ...