Publications by authors named "Chih Chen"

Fibroepithelial lesions (FELs) of the breast represent a diverse group of biphasic tumors with varying morphologies and clinical behavior. The classification of FELs is mainly based on a constellation of diagnostic criteria, and intralesional heterogeneity is not uncommon. Therefore, reporting FELs in a core needle biopsy (CNB) with limited tissue material can be challenging as not all the features may be represented for assessment.

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  • Nanotwinned Cu (NT-Cu) is being studied as a material for copper redistribution lines (RDLs) in semiconductor devices, but it faces challenges with oxidation that can increase electrical resistance.
  • To tackle this issue, researchers applied three different passivation coatings—immersion Ag/Sn and plasma-enhanced chemical vapor deposition (PECVD) SiCN—to NT-Cu at relatively low temperatures.
  • Results showed that these coatings effectively prevented oxidation and maintained low electrical resistance during temperature cycling tests, indicating their potential for improving the reliability of NT-Cu RDLs.
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  • A hybrid operating room technique for pulmonary nodule localization offers a promising alternative to traditional two-stage methods, allowing for lesion localization during positive ventilation rather than in response to respiratory motion.
  • A retrospective analysis of 176 patients compared localization accuracy between standard and lung-protective ventilator settings, with findings showing a significant improvement in accuracy using the higher tidal volume setting (8-10 mL/kg).
  • The study identified tidal volume, nodule count, and localization depth as key factors affecting accuracy, suggesting that further randomized controlled trials are needed to confirm these results and set future clinical guidelines.
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Background/aim: In this study, we introduce an innovative deep-learning model architecture aimed at enhancing the accuracy of detecting and classifying organizing pneumonia (OP), a condition characterized by the presence of Masson bodies within the alveolar spaces due to lung injury. The variable morphology of Masson bodies and their resemblance to adjacent pulmonary structures pose significant diagnostic challenges, necessitating a model capable of discerning subtle textural and structural differences. Our model incorporates a novel architecture that integrates advancements in three key areas: Semantic segmentation, texture analysis, and structural feature recognition.

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  • A native tree of Taiwan, (C. Presl) Kubitzki, known for its tolerance to salt and wind, faced a disease outbreak in December 2022 at a nursery in Wu-Lai, characterized by leaf lesions leading to blight and defoliation.
  • The pathogen involved produced distinctive sporophores and sclerotia, which were isolated and examined under laboratory conditions, revealing specific morphological traits.
  • DNA analysis was conducted on samples from the infected plants, and the fungus responsible was identified as (I. Hino) Redhead, using PCR techniques to amplify genetic material for further studies.
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Introduction: Frailty in older adults can lead to a gradual decline in organ function. Without timely diagnosis and intervention, this condition can progress rapidly, increasing the risk of disability and mortality.

Objectives: The aim of this project was to implement evidence-based practices for managing frailty in the medical ward to prevent disability in older patients.

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Background/aim: The pathological diagnosis of organizing pneumonia (OP) relies on conventional traditional histopathological analysis, which involves examining stained thin slices of tissue. However, this method often results in suboptimal diagnostic objectivity due to low tissue sampling rates. This study aimed to assess the efficacy of tissue-clearing and infiltration-enhanced 3D spatial imaging techniques for elucidating the tissue architecture of OP.

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Objective: To compare the changes in the sinonasal mucosa microbiome in patients with nasopharyngeal carcinoma (NPC) before and after radiotherapy (RT), and to explore the pathogenesis of post-irradiation chronic rhinosinusitis (PI-CRS) and its association with dysbiosis.

Study Design: Prospective cohort study.

Setting: Unicenter, Tertiary referral hospital.

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The effects of the sintering duration and powder fraction (Ag-coated Cu/SnAgCu) on the microstructure and reliability of transient liquid phase sintered (TLPS) joints are investigated. The results show that two main intermetallic compounds (IMCs, CuSn and CuSn) formed in the joints. The CuSn ratio generally decreased with increasing sintering time, Cu powder fraction, and thermal treatment.

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Background: The community transmission of COVID-19 has caused the breakdown of the regional emergency medical system (REMS), impacting the rights and care of regional patients with acute and severe conditions. This study proposes a model for the surge capacity of REMS to plan for readiness and preparedness during challenging events that overload capacity.

Methods: The surge capacity of REMS during the COVID-19 pandemic was studied.

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Aim: To determine the effects of collaborative health management of congestive heart failure through the rigorous evaluation and extraction of evidence.

Background: Over the past two decades, cardiovascular disease has been the leading cause of death worldwide. Multidisciplinary team intervention for congestive heart failure has increased with population ageing and congestive heart failure incidence rate as well as cost of care.

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  • The study aimed to assess the effectiveness of a telepractice-based intensive voice feminization therapy program for transgender women.
  • Nine out of ten participants completed 12 sessions of therapy, which included resonant voice techniques and exercises, leading to significant improvements in voice-related measures.
  • Although promising results were found regarding voice femininity and quality of life, the study's limitations included a small sample size and the absence of a control group, suggesting the need for further research.
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The behavior of recrystallization and grain growth was examined in Cu-Cu joints during electromigration at 150 °C. Recrystallization and grain growth were observed in all the joints after electromigration for 9000 h. Voiding was formed in Cu current-feeding lines and in bonding interfaces, and resistance increased with time due to the void formation.

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  • X-ray nanodiffraction was utilized to analyze thermal stress in 10 µm nanotwinned copper bumps within Cu/SiO hybrid structures across various temperatures from -55 °C to 200 °C.
  • The study found that the Cu bumps experienced compressive thermal stress both before and after hybrid bonding, with an average stress value reaching -169.1 MPa at 200 °C.
  • This research offers insights into the strain and stress behaviors of confined metal bumps and enhances understanding of hybrid bonding processes that do not require external compression.
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Background: Microsurgical great toe-to-thumb transfer (mGTT) is a widely used procedure when immediate replantation of thumb is not feasible. The aim of this study was to investigate the alteration of plantar pressure profile of the donor foot after mGTT.

Methods: Twenty patients receiving microsurgical great toe-to-hand transfer between 1985 to 2014, and 16 healthy subjects were recruited.

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Purpose: The prevalence of children myopia in Taiwan is among the highest in the world. The study aimed to understand the status of the final prescription of the spectacle prescribed by the Taiwan optometrists when they conducted the visual inspection of elementary school, middle school and high school students, and to evaluate the influencing factors of their decision-making behavior.

Methods: Among the attendants of the continuing education course activities held by optometrist associations in Taiwan, an anonymous questionnaire survey was given on the spot to optometrists who have passed the national examination.

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In this study, thermal and argon (Ar) plasma/wetting treatments were combined to enhance the bonding strength of polyimide (PI) films. Attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) was used to analyze the changes in the PI imidization degrees. The contact angles of the PI films were also measured.

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To date, the identification of crypotococcal relapse remains clinically challenging as it often has similar manifestation with paradoxical immune reconstitution inflammatory syndrome. This study reports on the use of metagenomics assisted next generation sequencing to aid in diagnosing recurrent cryptococcal meningitis in an person living with HIV experiencing recurring symptoms, despite negative culture results for in the cerebrospinal fluid. Although fungal culture was negative, when reads from metagenomic and metatranscriptomic sequencing performed on the Day 308 cerebrospinal fluid sample were mapped onto the genome from the Day 4 isolate, 589 specific reads were identified.

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The standard treatment for early-stage lung cancer is complete tumor excision by limited resection of the lung. Preoperative localization is used before video-assisted thoracoscopic surgery (VATS) to improve the accuracy of pulmonary nodule excision. However, lung atelectasis and hypoxia resulting from controlling apnea during the localization procedure may affect the localization accuracy.

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The electrochemical carbon dioxide reduction reaction (CORR) is a promising route to close the carbon cycle by reducing CO into valuable fuels and chemicals. Electrocatalysts with high selectivity toward a single product are economically desirable yet challenging to achieve. Herein, we demonstrated a highly (111)-oriented Cu foil electrocatalyst with dense twin boundaries (TB) (tw-Cu) that showed a high Faradaic efficiency of 86.

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Highly (111)-oriented nanotwinned Cu (nt-Cu) films were fabricated on silicon wafers for thermal-stress characterization. We tailored the microstructural features (grain scale and orientation) of the films by tuning the electroplating parameters. The films were heat-treated and the relaxation behaviors of thermal stresses in the films were explored using a bending beam system.

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Invasive community-associated methicillin-resistant Staphylococcus aureus (MRSA) diseases caused by clonal complex 398 MRSA without animal contact have become a new emerging threat. We report a case of bacteremic mediastinitis caused by a Panton-Valentine leukocidin-positive community-associated sequence type 1232 MRSA in a Taiwanese baby aged 4 months without animal contact.

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The nanoscopic deformation of ⟨111⟩ nanotwinned copper nanopillars under strain rates between 10/s and 5 × 10/s was studied by using in situ transmission electron microscopy. The correlation among dislocation activity, twin boundary instability due to incoherent twin boundary migration and corresponding mechanical responses was investigated. Dislocations piled up in the nanotwinned copper, giving rise to significant hardening at relatively high strain rates of 3-5 × 10/s.

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