Publications by authors named "Yong-Feng Liang"

Background And Aim: The study aims to evaluate the feasibility of body mass index (BMI)-based individualized small bowel preparation for computed tomography enterography (CTE).

Methods: In this prospective randomized controlled study, patients undergoing CTE were randomly assigned to the individualized group or standardized group. Those in individualized group were given different volumes of mannitol solution based on BMI (1000 mL for patients with BMI < 18.

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A 26-year-old man who had inhaled a dried pepper 7 years previously was admitted to our hospital for repeated coughing with yellow sputum and occasional hemoptysis. A thoracic high-resolution computed tomography scan revealed a foreign body at the proximal end of the right lower bronchus. We attempted to remove the foreign body by flexible bronchoscopy, but this was unsuccessful because the foreign body fell deeper into the bronchus.

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Ultrafine nanoporous copper (UNP Cu) with a characteristic pore size of about 12 nm and a ligament size of about 14 nm was fabricated from amorphous MgCuY precursor alloys after dealloying in a 0.1 M H₂SO₄ solution modified by poly(vinyly alcohol) polymers with a molecular weight of 105000 g/mol (PVA-124). The suppression of the surface diffusion from PVA-124 reduced the size of the nanopores and ligaments to 20 nm when the concentration of the added PVA-124 exceeded 0.

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Purpose: This study aims to compare the effects and prognosis of medical thoracoscopy-assisted argon plasma coagulation (APC) combined with electrosurgical unit (ESU) surgery, video-assisted thoracic surgery (VATS), and pleurodesis surgery, in providing appropriate treatment for elderly refractory pneumothorax patients.

Methods: Patients with refractory pneumothorax aged over 65 years were divided into three groups: APC combined with ESU (N = 20), VATS (N = 26), and pleurodesis (N = 24). Data on demographic characteristics, lung function evaluation, and short- and long-term prognoses were collected.

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Objective: To study the chemical constituents root of Hemerocallis citrina.

Methods: The chemical constituents were extracted by microwave method and purified by silica gel column. Their structures were elucidated by their physical and chemical properties and spectral methods.

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Objective: To isolate and determine the chemical constituents of Ranunculus japonicus in Liupan Mountain, Ningxia province, China.

Method: The herb was extracted with ethanol by ultrasonic bath. The extractives were divided to petroleum ether, ethyl acetate, n-butanol parts.

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