The BPA is an emerging method of treatment of patients with inoperable CTEPH. m2) and 6-minute walking test (6-MWT) increased to 430 m.Three more BPA sessions at intervals of a few weeks were performed and mPAP was reduced to 29 mm Hg (mRAP – 7 mm Hg, PCWP – 13 mm Hg, PVR – 167 dyn Four inflations of a 2.0 mm × 20 mm semi-compliant balloon with the pressure of 4–10 atm were performed along the entire artery with good angiographic and hemodynamic effects (Figure 1 C). The diameter of the vessel was 2.23 mm × 2.42 mm. Surprisingly, OCT revealed extensive changes in the proximal and mid part of the target artery (“colander lesions” or meshwork) (Figure 1 B). Subsequently the vessel was accurately measured in several locations and the proper size of the balloon was selected to reduce the risk of post-reperfusion oedema. Iodinated contrast was infused at a flow rate of 5 ml/s over 4 s at 400 psi of pressure and OCT images were acquired. Then optical coherence tomography (OCT) of the target vessel was performed with the DragonFly (St. Subsequently a Whisper MS coronary guidewire (Abbott Vascular, Santa Clara, Ca, USA) was advanced through the lesion to the distal part of the vessel. This new system allows us to take a very high-resolution detailed image of your. Selective pulmonary angiography revealed the subtotally occluded A1 segmental branch of the left pulmonary artery (Figure 1 A). The Spectralis 4D OCT Eye Scanner is often compared to a CAT scan of your eye. Parameters studied with EDI SD-OCT were macular retinal thickness (MT), subfoveal choroidal thickness (SFChT), retinal nerve fiber layer thickness (RNFL), and. The 90-cm long 6Fr sheath (Flexor Shuttle Guiding Sheath, Cook Medical, Bloomington, IN, USA) and right Judkins 6-Fr guide catheter were used to achieve a good approach to the ostium of the A1 + A2 segmental branch. The BPA was performed from a right femoral vein approach. Functional testing demonstrated a reduced 6-minute walk distance of 220 m. m2) and pulmonary scintigraphy showed multiple segmental perfusion defects (segments 1, 2, 8, 9 in the left lung and 2, 3, 4, 5, 6 in the right lung).Right heart catheterisation confirmed pulmonary hypertension (mean pulmonary artery pressure (mPAP) 37 mm Hg, mean right atrial pressure (mRAP) 6 mm Hg, pulmonary capillary wedge pressure (PCWP) 13 mm Hg, pulmonary vascular resistance (PVR) 214 dyn Furthermore, we show that prolonged hydration in PBS has a significant effect on the measured corneal properties.A 71-year-old woman with non-operable, peripheral type chronic thrombo-embolic pulmonary hypertension (CTEPH) and with World Health Organisation (WHO) class III dyspnoea was admitted to our department for balloon pulmonary angioplasty (BPA). AIM: To analyze changes of the optic nerve head (ONH) and peripapillary region during intraocular pressure (IOP) elevation in patients using spectral domain. Our study demonstrates that LF-OCT can be used to accurately measure the elastic properties based on volumetric deformation following physiological pressures. Prolonged hydration in phosphate buffered saline (PBS) was found to significantly increase the elastic modulus and corneal hysteresis. Based on polarization properties, OCT can differentiate tissue characteristics (fibrous, calcified, or lipid-rich plaque) and identify thin-cap. Corneal thickness was found to reduce with IOP, decreasing 14% from 0 to 60 mmHg. Optical coherence tomography (OCT) is an optical analog of intravascular ultrasound (IVUS) that can be used to examine the coronary arteries and has 10-fold higher resolution than IVUS. We found that the elastic modulus increased in a linear fashion with IOP. In addition, the effects of hydration were explored. Corneal thickness, elastic properties and hysteresis were calculated as a function of pressure. A custom-built LF-OCT was used to measure geometrical and corneal surface displacement changes in porcine corneas under a range of IOPs, from 0-60 mmHg. This study investigates the novel use of Line-Field Optical Coherence Tomography (LF-OCT) as an elastographic tool for accurately measuring mechanical properties of porcine corneas based on volumetric deformation following varying IOPs. There has been a lot of interest in accurately characterising corneal biomechanical properties under intraocular pressure (IOP) to help better understand ocular pathologies that are associated with elevated IOP.
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