Search Results - "Zaidi, Habib"

Applications of artificial intelligence and deep learning in molecular imaging and radiotherapy by Arabi, Hossein, Zaidi, Habib

“…This brief review summarizes the major applications of artificial intelligence (AI), in particular deep learning approaches, in molecular imaging and radiation…”
Get full text

Deep learning-guided estimation of attenuation correction factors from time-of-flight PET emission data by Arabi, Hossein, Zaidi, Habib

“…•Estimation of attenuation correction factors (ACFs) from emission data using deep learning.•Information pertinent to the attenuating medium is reflected in…”
Get full text

Towards enhanced PET quantification in clinical oncology by Zaidi, Habib, Karakatsanis, Nicolas

“…Positron emission tomography (PET) has, since its inception, established itself as the imaging modality of choice for the in vivo quantitative assessment of…”
Get full text

PET-guided delineation of radiation therapy treatment volumes: a survey of image segmentation techniques by Zaidi, Habib, El Naqa, Issam

“…Historically, anatomical CT and MR images were used to delineate the gross tumour volumes (GTVs) for radiotherapy treatment planning. The capabilities offered…”
Get full text

Projection Space Implementation of Deep Learning-Guided Low-Dose Brain PET Imaging Improves Performance over Implementation in Image Space by Sanaat, Amirhossein, Arabi, Hossein, Mainta, Ismini, Garibotto, Valentina, Zaidi, Habib

“…Our purpose was to assess the performance of full-dose (FD) PET image synthesis in both image and sinogram space from low-dose (LD) PET images and sinograms…”
Get full text

Impact of time-of-flight PET on quantification errors in MR imaging-based attenuation correction by Mehranian, Abolfazl, Zaidi, Habib

“…Time-of-flight (TOF) PET/MR imaging is an emerging imaging technology with great capabilities offered by TOF to improve image quality and lesion detectability…”
Get full text

Joint Estimation of Activity and Attenuation in Whole-Body TOF PET/MRI Using Constrained Gaussian Mixture Models by Mehranian, Abolfazl, Zaidi, Habib

“…It has recently been shown that the attenuation map can be estimated from time-of-flight (TOF) PET emission data using joint maximum likelihood reconstruction…”
Get full text

Non-local mean denoising using multiple PET reconstructions by Arabi, Hossein, Zaidi, Habib

“…Objectives Non-local mean (NLM) filtering has been broadly used for denoising of natural and medical images. The NLM filter relies on the redundant…”
Get full text

The promise of artificial intelligence and deep learning in PET and SPECT imaging by Arabi, Hossein, AkhavanAllaf, Azadeh, Sanaat, Amirhossein, Shiri, Isaac, Zaidi, Habib

“…[Display omitted] •Artificial intelligence and deep learning-based solutions emerged as promising approaches pertinent to PET and SPECT imaging.•Numerous…”
Get full text

Deep learning‐guided joint attenuation and scatter correction in multitracer neuroimaging studies by Arabi, Hossein, Bortolin, Karin, Ginovart, Nathalie, Garibotto, Valentina, Zaidi, Habib

“…PET attenuation correction (AC) on systems lacking CT/transmission scanning, such as dedicated brain PET scanners and hybrid PET/MRI, is challenging. Direct AC…”
Get full text

A novel fuzzy C-means algorithm for unsupervised heterogeneous tumor quantification in PET by Belhassen, Saoussen, Zaidi, Habib

“…Purpose: Accurate and robust image segmentation was identified as one of the most challenging issues facing PET quantification in oncological imaging. This…”
Get full text

Deep learning-assisted ultra-fast/low-dose whole-body PET/CT imaging by Sanaat, Amirhossein, Shiri, Isaac, Arabi, Hossein, Mainta, Ismini, Nkoulou, René, Zaidi, Habib

“…Purpose Tendency is to moderate the injected activity and/or reduce acquisition time in PET examinations to minimize potential radiation hazards and increase…”
Get full text

Depth of Interaction Estimation in a Preclinical PET Scanner Equipped with Monolithic Crystals Coupled to SiPMs Using a Deep Neural Network by Sanaat, Amirhossein, Zaidi, Habib

“…The scintillation light distribution produced by photodetectors in positron emission tomography (PET) provides the depth of interaction (DOI) information…”
Get full text

Whole-body voxel-based internal dosimetry using deep learning by Akhavanallaf, Azadeh, Shiri, Iscaac, Arabi, Hossein, Zaidi, Habib

“…Purpose In the era of precision medicine, patient-specific dose calculation using Monte Carlo (MC) simulations is deemed the gold standard technique for…”
Get full text

DeepTOFSino: A deep learning model for synthesizing full-dose time-of-flight bin sinograms from their corresponding low-dose sinograms by Sanaat, Amirhossein, Shooli, Hossein, Ferdowsi, Sohrab, Shiri, Isaac, Arabi, Hossein, Zaidi, Habib

“…Reducing the injected activity and/or the scanning time is a desirable goal to minimize radiation exposure and maximize patients’ comfort. To achieve this…”
Get full text

Fast dynamic brain PET imaging using stochastic variational prediction for recurrent frame generation by Sanaat, Amirhossein, Mirsadeghi, Ehsan, Razeghi, Behrooz, Ginovart, Nathalie, Zaidi, Habib

“…Purpose We assess the performance of a recurrent frame generation algorithm for prediction of late frames from initial frames in dynamic brain PET imaging…”
Get full text

Quantitative analysis of MRI-guided attenuation correction techniques in time-of-flight brain PET/MRI by Mehranian, Abolfazl, Arabi, Hossein, Zaidi, Habib

“…In quantitative PET/MR imaging, attenuation correction (AC) of PET data is markedly challenged by the need of deriving accurate attenuation maps from MR…”
Get full text

Clinical Assessment of Emission- and Segmentation-Based MR-Guided Attenuation Correction in Whole-Body Time-of-Flight PET/MR Imaging by Mehranian, Abolfazl, Zaidi, Habib

“…The joint maximum-likelihood reconstruction of activity and attenuation (MLAA) for emission-based attenuation correction has regained attention since the…”
Get full text

Vision 20/20: Magnetic resonance imaging-guided attenuation correction in PET/MRI: Challenges, solutions, and opportunities by Mehranian, Abolfazl, Arabi, Hossein, Zaidi, Habib

“…Attenuation correction is an essential component of the long chain of data correction techniques required to achieve the full potential of quantitative…”
Get full text

Comparative study of algorithms for synthetic CT generation from MRI: Consequences for MRI‐guided radiation planning in the pelvic region by Arabi, Hossein, Dowling, Jason A., Burgos, Ninon, Han, Xiao, Greer, Peter B., Koutsouvelis, Nikolaos, Zaidi, Habib

“…Purpose Magnetic resonance imaging (MRI)‐guided radiation therapy (RT) treatment planning is limited by the fact that the electron density distribution…”
Get full text