Low-coherence optical diffraction tomography using a ferroelectric liquid crystal spatial light modulator.

Optical diffraction tomography (ODT) is a three-dimensional (3D) label-free imaging technique. The 3D refractive index distribution of a sample can be reconstructed from multiple two-dimensional optical field images via ODT. Herein, we introduce a temporally low-coherence ODT technique using a ferroelectric liquid crystal spatial light modulator (FLC SLM).

Generalized quantification of three-dimensional resolution in optical diffraction tomography using the projection of maximal spatial bandwidths.

Optical diffraction tomography (ODT) is a three-dimensional (3D) quantitative phase imaging technique, which enables the reconstruction of the 3D refractive index (RI) distribution of a transparent sample. Due to its fast, non-invasive, and quantitative imaging capability, ODT has emerged as a powerful tool for various applications. However, the spatial resolution of ODT has only been quantified along the lateral and axial directions for limited conditions; it has not been investigated for arbitrary-oblique directions.

Left ventricular diastolic dyssynchrony in patients with treatment-naive hypertension and the effects of antihypertensive therapy.

Aims: The presence of left ventricular diastolic dyssynchrony is well known to be a frequent and important manifestation in heart failure. We investigated diastolic dyssynchrony in patients with treatment-naive hypertension, compared with normal controls; the determinants of the presence of diastolic dyssynchrony by performing comprehensive studies including laboratory, arterial stiffness, central blood pressure (BP), ambulatory BP monitoring (ABPM), and transthoracic echocardiography (TTE) evaluations; the effects of 6-month antihypertensive therapy on diastolic dyssynchrony; and the predictors associated with the change of diastolic dyssynchrony after medical therapy.

Methods: A total of 325 treatment-naive hypertensive patients and 172 normal controls were prospectively enrolled.

The effect of cilostazol on stent thrombosis after drug-eluting stent implantation.

Background And Objectives: Placement of drug-eluting stents (DES) can be complicated by stent thrombosis; prophylactic antiplatelet therapy has been used to prevent such events. We evaluated the efficacy of cilostazol with regard to stent thrombosis as adjunctive antiplatelet therapy.

Subjects And Methods: A total of 1,315 patients (846 males, 469 females) were prospectively enrolled and analyzed for the frequency of stent thrombosis.