Results 41 to 50 of about 1,779,847 (297)

Adaptive replanning using cone beam CT for deformation of original CT simulation

Journal of Medical Radiation Sciences, 2022
Background During a course of radiation therapy, anatomical changes such as a decrease in tumour size or weight loss can trigger the need for repeating a computed tomography (CT) simulation scan in order to generate a new treatment plan.
Casey Bojechko, Patricia Hua, Whitney Sumner, Kripa Guram, Todd Atwood, Andrew Sharabi   +5 more
doaj   +1 more source

Exact Image Reconstruction in Cone Beam 3D CT [PDF]

, 1995
In cone beam CT, the measured x-ray data represent 1D line integrals through the 3D object. The object can be reconstructed via 3D inverse Radon transformation from the 2D planar integrals, or Radon transform, of the object if the latter can be ...
K. C. Tam, Tam, K. C.
core   +1 more source

Multiplexed Profiling of Individual Extracellular Vesicles Reveals Lung Cancer‐Associated Protein Signatures

Advanced Science, EarlyView.
Cygnus (Cyclic‐imaging gateway to nanovesicles underlying signature) integrates multiplexed single‐EV protein imaging with a practical analysis workflow to examine EV phenotypes at vesicle, subpopulation, and sample scales. ABSTRACT Lung cancer is frequently diagnosed after curative treatment windows have narrowed, creating a need for minimally ...
Mi Hyeon Cho, Yein Chung, Yoonjeong Choi, Baekdong Cha, Jayeon Song, Nuri Oh, Ala Jo, Thomas S. C. Ng, Hyunho Kim, Hyun‐Kyung Woo, Chang Hyun Kim, Cesar M. Castro, Miles A. Miller, Hakho Lee   +13 more
wiley   +1 more source

Patient Knowledge Regarding Radiation Exposure from Orthopaedic Foot and Ankle Imaging

Foot & Ankle Orthopaedics, 2018
Category: Other Introduction/Purpose: Foot and ankle surgeons routinely prescribe diagnostic imaging that exposes patients to potentially harmful ionizing radiation.
Daniel Bohl MD, MPH, Blaine Manning BS, George Holmes MD, Simon Lee MD, Johnny Lin MD, Kamran Hamid MD, MPH   +5 more
doaj   +1 more source

SynNotch Receptors for Visualizing Immunoreceptor Force Transmission and Downstream Signaling In Vivo

Advanced Science, EarlyView.
A mechanically activated SynNotch reporter platform enables detection of force transmission through receptors as they mediate immune cell interactions. Targeting CD40 on B cells and TCR on T cells records force‐induced reporter activation across 2D coculture, 3D organoid, and implanted in mice, which also reveal force‐amplification of immune receptor ...
Menglan Li, Jintian Lyu, Kaitao Li, Ameya Dravid, Deepali Balasubramani, Amir H. K. Ashkezari, Hyun‐Kyu Choi, Gabriel A. Kwong, Ankur Singh, Cheng Zhu   +9 more
wiley   +1 more source

GAN‐LSTM‐3D: An efficient method for lung tumour 3D reconstruction enhanced by attention‐based LSTM

CAAI Transactions on Intelligence Technology, EarlyView., 2023
Abstract Three‐dimensional (3D) image reconstruction of tumours can visualise their structures with precision and high resolution. In this article, GAN‐LSTM‐3D method is proposed for 3D reconstruction of lung cancer tumours from 2D CT images. Our method consists of three phases: lung segmentation, tumour segmentation, and tumour 3D reconstruction. Lung
Lu Hong, Mohammad Hossein Modirrousta, Mohammad Hossein Nasirpour, Mohammadreza Mirshekari Chargari, Fardin Mohammadi, Seyed Vahid Moravvej, Leila Rezvanishad, Mohammadreza Rezvanishad, Ivan Bakhshayeshi, Roohallah Alizadehsani, Imran Razzak, Hamid Alinejad‐Rokny, Saeid Nahavandi   +12 more
wiley   +1 more source

High diagnostic performance of dynamic flat-panel computed tomography (Cone-Beam-CT) in detecting anatomical structures of temporal bones of healthy probands and patients with ear diseases

Frontiers in Audiology and Otology
BackgroundThis retrospective study aimed to investigate the diagnostic performance of flat-panel computed tomography (Cone-Beam-CT) in detecting normal anatomy and pathologies of the temporal bone.MethodsCone-Beam-CT scans of 216 persons (291 temporal ...
Jiri Podzimek, Alexander Hansch, René Aschenbach, Ulf Teichgräber, Orlando Guntinas-Lichius, Mussab Kouka   +5 more
doaj   +1 more source

Referral pattern to a university-based oral and maxillofacial cone beam CT service

Indian Journal of Dental Research, 2019
Aim: Despite the rising popularity of cone-beam computed tomography (CBCT) imaging in the field of dentistry, very few studies have addressed the questions of which dental specialties most frequently request CBCT images and which CBCT indications are ...
Fatima M Jadu, Ahmed M Jan
doaj   +1 more source

Microfluidic Gratings for X‐Ray Phase Contrast Imaging

Advanced Science, EarlyView.
This work establishes a new protocol for the fabrication of X‐ray gratings that exploits the advantages of microfluidics and enables a more inexpensive, faster, and scalable production process. These X‐ray devices are fundamental for implementing X‐ray phase contrast imaging (XPCI) in laboratory and clinical settings, yet their costly and complex ...
Alessandro Rossi, Antonio Ferraro, Francesco Coccimiglio, Tiziana Ritacco, Alberto Astolfo, Michele Giocondo, Vincenzo Formoso, Raffaele Giuseppe Agostino, Francesco Iacoviello, Ioannis Papakonstantinou, Alessandro Olivo   +10 more
wiley   +1 more source

Fundamentals of cone beam computed tomography for a prosthodontist

The Journal of Indian Prosthodontic Society, 2015
Cone beam computed tomography (CBCT, also referred to as C-arm computed tomography [CT], cone beam volume CT, or flat panel CT) is a medical imaging technique of X-ray CT where the X-rays are divergent, forming a cone. [1] CBCT systems have been designed
George Puthenpurayil John, Tatu Elenjickal Joy, Justin Mathew, Vinod R. B. Kumar   +3 more
doaj   +1 more source