Results 201 to 210 of about 6,621,534 (346)

Effect of Photorefractive Keratectomy and Laser in situ Keratomileusis in High Myopia on logMAR Visual Acuity and Contrast Sensitivity [PDF]

, 2003
H Langrová, Matthias Derse, D Hejcmanová, A Feuermannová, P Rozsíval, Markéta Hejcmanová   +5 more
openalex   +1 more source

The edge visualization metric: Quantifying the improvement of lung SBRT target definition with 4D CBCT

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Four‐dimensional cone‐beam CT (4D CBCT) incorporates oversampling of 3D data to reconstruct multi‐phase CBCT data sets representing distinct phases of the breathing cycle based on a diaphragmatic correlate of respiratory motion. Motion artifacts and blurring can be reduced relative to three‐dimensional cone‐beam (3D CBCT), allowing ...
Colton Baley, Sam Andersen, Clark Anderson, Shraddha Dalwadi, Daniel L. Saenz   +4 more
wiley   +1 more source

Effect of prisms on visual acuity, contrast sensitivity and nystagmus in patients with albinism. [PDF]

Int J Ophthalmol
Dashti M, Riazi A, Ashrafi M, Rahmani S, Tabatabaei SM.   +4 more
europepmc   +1 more source

Energy dependence of the GAFCHROMIC LD‐V1 in the diagnostic radiographic modalities

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract The GAFCHROMIC LD‐V1 radiochromic film is widely used in dosimetry because it can provide high‐resolution two‐dimensional dose distributions without processing. This study aimed to evaluate the response characteristics at different effective energies, from the low‐energy range of mammography to the high‐energy range of computed tomography. Net
Tatsuhiro Gotanda, Tomoyuki Hasuo, Shinnosuke Nishihara, Kohsei Matsuura, Yasuyuki Kawaji, Hidetoshi Yatake, Shinya Imai, Takuya Akagawa, Nobuyoshi Tanki, Toshizo Katsuda   +9 more
wiley   +1 more source

Structure-Function Associations Between Quantitative Contrast Sensitivity Function And Peripapillary Optical Coherence Tomography Angiography in Diabetic Retinopathy. [PDF]

Invest Ophthalmol Vis Sci
Ha SK, Ding X, Romano F, Overbey KM, Vingopoulos F, Garg I, Bennett CF, Stettler I, Ploumi I, Baldwin G, Finn MJ, Razavi P, Vavvas DG, Husain D, Patel NA, Kim LA, Miller JB.   +16 more
europepmc   +1 more source

Long‐term stability analysis of beam shape in a robotic radiosurgery system

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study aimed to investigate the long‐term stability of CyberKnife beam profile parameters and assess their compliance with existing quality assurance (QA) guidelines. We evaluated beam profiles in both standard and diagonal planes over 3.5 years post‐installation to detect potential issues and ensure consistent beam quality.
Ryoichi Hinoto, Shiho Kashiyama, Takahisa Eriguchi, Nobuhiro Tsukamoto, Takeji Sakae   +4 more
wiley   +1 more source

Simulation‐free workflow for lattice radiation therapy using deep learning predicted synthetic computed tomography: A feasibility study

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Lattice radiation therapy (LRT) is a form of spatially fractionated radiation therapy that allows increased total dose delivery aiming for improved treatment response without an increase in toxicities, commonly utilized for palliation of bulky tumors.
Libing Zhu, Nathan Y. Yu, Safia K. Ahmed, Jonathan B. Ashman, Diego Santos Toesca, Michael P. Grams, Christopher L. Deufel, Jingwei Duan, Quan Chen, Yi Rong   +9 more
wiley   +1 more source

Contrast Sensitivity Is Impaired in Suspected Primary Open-Angle Glaucoma Patients. [PDF]

Brain Sci
Tripolone MC, Issolio LA, Perez DO, Barrionuevo PA.   +3 more
europepmc   +1 more source

Age-related Changes of Contrast Sensitivity Depend on Illuminance Level

, 2000
Michico Iwata, Katsunori Okajima, Hiroyasu Ujike   +2 more
openalex   +2 more sources

Contrast sensitivity as an outcome measure in patients with subfoveal choroidal neovascularisation due to age-related macular degeneration [PDF]

, 2004
Jordi Monés, Gary S. Rubin
openalex   +1 more source