Abstract Several useful tractography-derived maps have recently been introduced, such as track density imaging (TDI) and the average pathlength map (APM). Here, an extension to these techniques is introduced by sampling diffusion indices along streamline trajectories (DIST). With this approach, voxels contain summary information of diffusivity measures within streamlines. The diffusion metric...

Bronchopulmonary dysplasia (BPD) is a chronic lung disease associated with under development of lung tissue, mainly occurring in premature and extremely low birth weight infants. BPD has a poor prognosis in morbidity and mortality but BPD with pulmonary hypertension and right ventricular (RV) dys-function has worse prognosis. 1) Early detection for pulmonary hypertension and RV dysfunction is i...

Occupational asthma HLA locus Antigen presentation Genetics Corresponsence to: Dr. L. M. Fabbri, Laboratorio di Fisiopatologia Sperimentale, Università di Ferrara, Via Luigi Borsari 46, l–44100 Ferrara (Italy) Exposure to toluene diisocyanate (TDI) is associated with a variety of chronic disorders of the lung, including asthma [1]. TDI-induced asthma has been the most common cause of occupation...

THREE DIISOCYANATES CAN CAUSE OCCUPATIONAL ASTHMA (OA): toluene diisocyanate (TDI), 4,4 diphenylmethane diisocyanate (MDI), and 1,6-hexamethylene diisocyanate (HDI). We analyzed potential biomarkers of isocyanate-induced OA, based on investigated immunologic, genetic, neurogenic, and protein markers, because there is no serological testing method. The prevalence of serum IgG to cytokeratin (CK)...

BACKGROUND AND OBJECTIVES Although the Tei index is a useful predictor of global ventricular function, it has not been investigated at the level of regional myocardial function. We therefore investigated the segmental tissue Doppler image derived-Tei index (TDI-Tei index) in patients with regional wall motion abnormalities. SUBJECTS AND METHODS We prospectively studied 17 patients (mean age 6...

BACKGROUND Tissue Doppler imaging (TDI) detects left ventricular dysfunction in patients with heart failure and normal ejection fraction, but the prognostic significance of left ventricular dysfunction by TDI in the general population is unknown. METHODS AND RESULTS Within the Copenhagen City Heart Study, a large community-based population study, cardiac function was evaluated in 1036 partici...

OBJECTIVE To examine the relation between longitudinal left ventricular function assessed by tissue Doppler imaging (TDi) and exercise capacity in heart failure. SUBJECTS 153 patients with chronic heart failure from left ventricular systolic dysfunction (ejection fraction < 45%) and 87 age and sex matched controls. METHODS Echocardiography was used to measure conventional indices of left ve...

We have recently introduced a novel MRI methodology, so-called super resolution track-density imaging (TDI), which produces high-quality white matter images, with high spatial resolution and exquisite anatomical contrast not available from other MRI modalities. This method achieves super resolution by utilising the long-range information contained in the diffusion MRI fibre tracks. In this stud...

Monitoring traumatic dental injury (TDI) in primary teeth through epidemiological cross-sectional surveys provides descriptive information relevant to the development of public policies focused on the prevention of such injuries for the target population. The aim of this study was to assess the prevalence of TDI in 5- to 6-year-old Brazilian children and its association with biological and soci...