Negative / Null Result ReportMedicine
Masakazu H, Akiko M, Midori Y et al. · 2026 · Scientific reports
This study was conducted to evaluate the longitudinal morphological changes in cone density (CD) in patients with the eyes shut homolog (EYS)-associated retinitis pigmentosa (RP) using adaptive optics (AO) fundus imaging and to assess its…
View details →DOI: 10.1038/s41598-026-56837-3 Negative / Null Result ReportMedicine
Li DY, Kim S, Javed S et al. · 2026 · Regional anesthesia and pain medicine
Background Methadone is commonly used as an alternative to other opioids for managing cancer-related pain. High-dose methadone, primarily in opioid dependence treatment, has been associated with QTc prolongation and dangerous arrhythmias.…
View details →DOI: 10.1136/rapm-2025-107328 Negative / Null Result ReportOpen accessMedicine
Patel M, Schwartz K, Schenk M et al. · 2026 · Orthopaedic journal of sports medicine
Background Ulnar collateral ligament (UCL) reconstruction (UCLR) of the elbow is common in throwing athletes and reliably allows return to play. The literature supports stress imaging of the elbow to evaluate the integrity of the UCL. The…
View details →DOI: 10.1177/23259671261453313 Negative / Null Result ReportOpen accessMedicine
Hamid R, Bayramoğlu MN, Şirolu S et al. · 2026 · Journal of clinical medicine
Background: In this study, we radiologically assessed potential increases in microvascularity, extracellular matrix-related changes, and tissue viscoelasticity following carboxytherapy for periorbital hyperpigmentation (POH). We also…
View details →DOI: 10.3390/jcm15103776 Negative / Null Result Report
Wang W, Chen Z, Li M et al. · 2026 · Preprint
Fundus fluorescein angiography (FFA) is the gold standard for assessing diabetic retinopathy (DR) severity, but whether different contrast diffusion times affect staging remains unclear. Following two clinical DR staging criteria, we…
View details →DOI: 10.20944/preprints202606.0206.v1 Negative / Null Result ReportOpen accessMedicine
Zein MMA, Win KT, Alananzeh I · 2026 · Healthcare informatics research
Objectives This study aims to explore the key factors that enhance engagement in Facebook health support groups among Australian culturally and linguistically diverse (CALD) communities. Methods A cross-sectional online survey was…
View details →DOI: 10.4258/hir.2026.32.1.14 Negative / Null Result Report
Moradi A, Mohajeri Y, nikoo F · 2026 · Preprint
Abstract Objective: This study examines how maxillary sinus volume is influenced by factors such as nasal septum deviation, hard palate shift, and the presence of concha bullosa, considering the sinus’s close anatomical relationship with…
View details →DOI: 10.21203/rs.3.rs-8120446/v1 Failed Experiment ReportMedicine
Sekmen S, Hursoy N, Panc K et al. · 2026 · Clinical imaging
Aim This study aims to explore the correlation between background parenchymal enhancement (BPE) observed in breast magnetic resonance imaging (MRI) and the presence of breast cancer. Materials and methods A total of 761 patients (326…
View details →DOI: 10.1016/j.clinimag.2025.110680 Negative / Null Result ReportOpen accessMedicine
Durmuş Hİ, Polat ME · 2025 · Medical science monitor : international medical journal of experimental and clinical research
BACKGROUND Maxillofacial fractures represent one of the most common forms of traumatic injuries, affecting both function and aesthetics, and are associated with significant morbidity and long-term sequelae. The incidence and distribution…
View details →DOI: 10.12659/msm.949933 Negative / Null Result ReportOpen accessMedicine
Canadas MDB, Sousa ABS, Panzeri FC · 2026 · European journal of oral sciences
To evaluate the combination of composites, adhesive systems, and burs considering artificial accelerated aging (AAA), influence enamel roughness and morphology after attachment removal. One hundred ninety-two bovine enamel specimens were…
View details →DOI: 10.1111/eos.70088 Negative / Null Result ReportMedicine
Wang F, Sheng J, Zhang G et al. · 2026 · Health physics
Reducing radiation exposure in pediatric imaging is a key focus globally, and it is necessary to establish diagnostic reference levels (DRLs) for contrast-enhanced computed tomography (CT) in children. This study assesses typical radiation…
View details →DOI: 10.1097/hp.0000000000002147 Negative / Null Result Report
Armi S, Abharian PH, Barzkar F et al. · 2026 · Preprint
Abstract Introduction: Mild cognitive impairment (MCI), often misattributed to normal aging, commonly precedes dementia, highlighting the critical need for early identification to enable timely intervention and management. Objective: This…
View details →DOI: 10.21203/rs.3.rs-9918242/v1 Negative / Null Result ReportMedicine
Chen Y, Deng M, Xie L et al. · 2026 · Journal of translational medicine
Background The rarity of right heart masses challenges diagnostic proficiency, while reproducibility is affected by the echocardiography operator. Artificial intelligence (AI)-based imaging tools may help address these limitations. Methods…
View details →DOI: 10.1186/s12967-026-08322-8 Negative / Null Result Report
Chen J, Li X, Tian Z et al. · 2026 · Preprint
Abstract Objective To investigate the structural basis of white matter fiber tracts in cognitive dysfunction following radiochemotherapy in patients with frontal lobe glioma. Methods A total of 40 patients with frontal lobe glioma who…
View details →DOI: 10.21203/rs.3.rs-9225199/v1 Negative / Null Result ReportOpen accessMedicine
Spiegel S, Hübner RH, Schürmann D et al. · 2026 · BMC pulmonary medicine
Background Flexible bronchoscopy is an indispensable tool in respiratory medicine. In the context of an aging society and increasing life expectancy, the number of elderly, often multimorbid patients is growing. This raises important…
View details →DOI: 10.1186/s12890-026-04326-8 Negative / Null Result ReportMedicine
Kużdżał A, Gambuś K, Moszczyński K et al. · 2026 · Advances in clinical and experimental medicine : official organ Wroclaw Medical University
Background Positron emission tomography (PET) using 18-fluorodeoxyglucose (18-FDG) is the primary imaging modality for mediastinal staging of lung cancer. Higher standardized uptake value (SUVmax) reportedly correlates with more aggressive…
View details →DOI: 10.17219/acem/210368 Negative / Null Result ReportOpen accessMedicine
Roy S, Gupta N, Bharti SJ et al. · 2026 · Journal of anaesthesiology, clinical pharmacology
Background and aims Managing acute postsurgical pain following midline exploratory laparotomy in colorectal cancer patients involves various approaches, such as central neuraxial blockade, patient-controlled intravenous analgesia with…
View details →DOI: 10.4103/joacp.joacp_293_25 Negative / Null Result ReportMedicine
Schieda N, Morash C, Lavallee LT et al. · 2025 · BJU international
Objective To compare clinically significant prostate cancer (CS-PCa) detection by transperineal (TP) compared to transrectal (TR) magnetic resonance imaging (MRI)-ultrasonography (US) fusion prostate biopsy. Patients and methods Males with…
View details →DOI: 10.1111/bju.16831 Negative / Null Result ReportMedicine
Fields BC, Jain AJ, Prieto VG et al. · 2024 · The American Journal of dermatopathology
Abstract A 45-year-old woman with a history of previously treated left plantar foot melanoma presented with a left thigh mass. Fine needle aspiration findings were concerning for metastatic melanoma (MM). Imaging was remarkable for…
View details →DOI: 10.1097/dad.0000000000002771 Negative / Null Result ReportMedicine
Smeulders N, Gaze MN, Guérin F et al. · 2026 · Journal of pediatric surgery
Background Risk stratification of rhabdomyosarcoma (RMS) requires accurate staging, with histological nodal assessment being of critical importance for specific tumour sites. This report explores the value of surgical nodal staging in…
View details →DOI: 10.1016/j.jpedsurg.2026.163162 Negative / Null Result ReportMedicine
Lyu HH, Wen X, Lin JT et al. · 2025 · Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery
Objective: To compare the Kadish T staging, AJCC T staging, and Dulguerov T staging system in terms of their impact on surgical treatment selection and survival prognosis in patients with olfactory neuroblastoma (ONB). Methods: The cases…
View details →DOI: 10.3760/cma.j.cn115330-20240723-00438 Negative / Null Result ReportOpen accessMedicine
Mansouri M, Rockne KJ · 2026 · ACS environmental Au
Gas ebullition plays a critical role in facilitating contaminant transport from the sediment to the water column. Predicting gas ebullition accurately is necessary for managing sediments and assessing sediment/water flux, and many…
View details →DOI: 10.1021/acsenvironau.5c00221 Negative / Null Result ReportMedicine
Domin M, Liew SL, Hordacre B et al. · 2025 · NeuroImage
Indirect structural disconnection-symptom mapping allows white matter impairment to be determined without the need for multi-directional diffusion (MDDW) imaging for each individual. Although widely used this method has not been validated.…
View details →DOI: 10.1016/j.neuroimage.2025.121347 Negative / Null Result ReportOpen accessMedicine
Koivunen P · 2026 · Current opinion in otolaryngology & head and neck surgery
Purpose of review Systematic follow-up protocols, often including regular imaging, are an essential component of posttreatment care for head and neck cancer, aimed at the early detection of disease relapse and mitigating treatment-related…
View details →DOI: 10.1097/moo.0000000000001102 Negative / Null Result ReportOpen accessMedicine
Vuppu DP, Rajanbabu A, Nair IR et al. · 2025 · Ecancermedicalscience
The latest International Federation of Gynaecology and Obstetrics (FIGO) staging for endometrial cancer incorporated molecular profiles and histopathological factors into the basic staging framework. This study was done to determine its…
View details →DOI: 10.3332/ecancer.2025.1836 Negative / Null Result ReportMedicine
Ito N, Fukumoto S · 2025 · Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research
A 10-year-old girl developed bilateral gonalgia and waddling gait. Biochemical and imaging studies showed hypophosphatemia with impaired proximal tubular phosphate reabsorption and high intact fibroblast growth factor 23 (FGF23) level,…
View details →DOI: 10.1093/jbmr/zjaf047 