In 22 fetuses, three-dimensional reconstruction was performed on the basis of T2-weighted magnetic resonance (MR) data sets by using a surface-rendering technique. Fetuses and uteroplacental units were segmented manually; volumes were calculated automatically. Three-dimensional reconstruction and volumetry of the fetus and uteroplacental unit are feasible with MR data sets. MR estimates correla...

JKSMRM 13:63-73(2009) Neuroscience Research Institute, Kangwon National University College of Medicine Received; March 2, 2009, revised; April 30, 2009, accepted; May 10, 2009 Corresponding author : Sam Soo Kim, M.D., Department of Radiology, Kangwon National University Hospital, 17-1 Hyoja 3-dong, Chuncheon, Kangwon-do 200-947, Korea Tel. 82-33-258-2329 Fax. 82-33-258-2221 E-mail: samskim@kang...

Computerized brain volumetry has potential value for diagnosis and the follow-up evaluation of degenerative disorders. A potential pitfall of this method is the extent of physiologic variations in brain volume. The authors show that dehydration and rehydration can significantly change brain volume: lack of fluid intake for 16 hours decreased brain volume by 0.55% (SD, +/-0.69), and after rehydr...

Purpose LV volumetry and infarct size measurement using cardiac magnetic resonance imaging (MRI) is the reference standard to non-invasively measure and to quantify cardiac volumes, function and infarct size. We have observed a high variability of cardiac MRI measurements, if inexperienced observers evaluated the MRI data. The purpose of the study was to analyze the reproducibility of cardiac M...

Three-dimensional computed tomography (3D-CT) enables in vivo volumetry of total lung volume (TLV) and emphysematous low-attenuation volume (LAV) in patients with chronic obstructive pulmonary disease (COPD). We retrospectively investigated the correlation between preoperative 3D-CT volumetry and postoperative complications in lung cancer patients. We searched our institution's surgical records...

BACKGROUND Evaluation of left ventricular (LV) size and function is one of the important reasons for performing echocardiography. Real time three dimensional echocardiography (RT3DE) is now available for a precise non-invasive ventricular volumetry. Aim of work was to validate RT3DE as a non-invasive cardiac imaging method for measurement of LV volumes using cardiac angiography as the reference...

Objective: The effect of Small Vessel Disease (SVD) on the size of the hippocampus and amygdala remains uncertain. We carried out an MRI volumetry study to investigate the association between the volume of White Matter Lesions (WMLs) and the size of the hippocampus and amygdala. Methods: One hundred patients with ischemic stroke were recruited in this study, with their MRIs analyzed using autom...

Background: Hippocampal atrophy on MRI is an early characteristic of Alzheimer’s disease (AD). However, hippocampal atrophy may also occur in other dementias, like frontotemporal lobar degeneration (FTLD). Aim: To investigate hippocampal atrophy on MRI in FTLD and its three clinical subtypes, in comparison to AD, using volumetry and a visual rating scale. Methods: Forty-two patients with FTLD (...

Neuroimaging findings suggest that excessive Internet use shows functional and structural brain changes similar to substance addiction. Even though it is still under debate whether there are gender differences in case of problematic use, previous studies by-passed this question by focusing on males only or by using gender matched approach without controlling for potential gender effects. We des...