Navid Zeraatkar
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Explore the profile of Navid Zeraatkar including associated specialties, affiliations and a list of published articles.
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14
Citations
59
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Recent Articles
1.
Pells S, Zeraatkar N, Kalluri K, Moore S, May M, Furenlid L, et al.
Phys Med Biol
. 2024 May;
69(12).
PMID: 38776948
Single-photon emission computed tomography (SPECT) with pinhole collimators can provide high-resolution imaging, but is often limited by low sensitivity. Acquiring projections simultaneously through multiple pinholes affords both high resolution and...
2.
Azimi M, Kamali-Asl A, Ay M, Zeraatkar N, Hosseini M, Sanaat A, et al.
Quant Imaging Med Surg
. 2024 Mar;
14(3):2146-2164.
PMID: 38545051
Background: Positron emission tomography (PET) imaging encounters the obstacle of partial volume effects, arising from its limited intrinsic resolution, giving rise to (I) considerable bias, particularly for structures comparable in...
3.
Azimi M, Kamali-Asl A, Ay M, Zeraatkar N, Hosseini M, Sanaat A, et al.
Phys Med
. 2024 Feb;
119:103315.
PMID: 38377837
Purpose: This work set out to propose an attention-based deep neural network to predict partial volume corrected images from PET data not utilizing anatomical information. Methods: An attention-based convolutional neural...
4.
Konik A, Zeraatkar N, Kalluri K, Auer B, Fromme T, He Y, et al.
IEEE Trans Radiat Plasma Med Sci
. 2021 Nov;
5(6):817-825.
PMID: 34746540
SPECT imaging of dopamine transporters (DAT) in the brain is a widely utilized study to improve the diagnosis of Parkinsonian syndromes, where conventional (parallel-hole and fan-beam) collimators on dual-head scanners...
5.
Zeraatkar N, Kalluri K, Auer B, May M, Richards R, Furenlid L, et al.
Biomed Phys Eng Express
. 2021 Sep;
7(6).
PMID: 34507309
Application of multi-pinhole collimator in pinhole-based SPECT increases detection sensitivity. The presence of multiplexing in projection images due to the usage of multiple pinholes can further improve the sensitivity at...
6.
Zeraatkar N, Auer B, Kalluri K, May M, Momsen N, Richards R, et al.
Phys Med Biol
. 2020 Dec;
66(6):065004.
PMID: 33352545
We are developing a multi-detector pinhole-based stationary brain-dedicated SPECT system: AdaptiSPECT-C. In this work, we introduced a new design prototype with multiple adaptable pinhole apertures for each detector to modulate...
7.
Auer B, Zeraatkar N, Goding J, Konik A, Fromme T, Kalluri K, et al.
Phys Med Biol
. 2020 Oct;
66(3):035007.
PMID: 33065564
With brain-dedicated multi-detector systems employing pinhole apertures the usage of detectors facing the top of the patient's head (i.e. quasi-vertex (QV) views) can provide the advantage of additional viewing from...
8.
Zeraatkar N, Kalluri K, Auer B, Konik A, Fromme T, Furenlid L, et al.
IEEE Trans Med Imaging
. 2020 Aug;
39(12):4209-4224.
PMID: 32763850
We designed a dedicated multi-detector multi-pinhole brain SPECT scanner to generate images of higher quality compared to general-purpose systems. The system, AdaptiSPECT-C, is intended to adapt its sensitivity-resolution trade-off by...
9.
Konik A, Auer B, De Beenhouwer J, Kalluri K, Zeraatkar N, Furenlid L, et al.
Phys Med Biol
. 2019 Nov;
64(24):245001.
PMID: 31746783
Multi-pinhole (MPH) collimators are known to provide better trade-off between sensitivity and resolution for preclinical, as well as for smaller regions in clinical SPECT imaging compared to conventional collimators. In...
10.
Konik A, De Beenhouwer J, Mukherjee J, Kalluri K, Banerjee S, Zeraatkar N, et al.
IEEE Trans Radiat Plasma Med Sci
. 2019 Apr;
2(5):444-451.
PMID: 31011693
SPECT imaging of the dopamine transporter (DAT) is used for diagnosis and monitoring progression of Parkinson's Disease (PD), and differentiation of PD from other neurological disorders. The diagnosis is based...