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Göksel S, Başaran M, Gündoğdu H, Karaçin C. A Rare Hernia Mimicking Implant in a Patient with Rectal Adenocarcinoma: Internal Herniation. Mol Imaging Radionucl Ther 2023; 32:87-89. [PMID: 36820708 PMCID: PMC9950681 DOI: 10.4274/mirt.galenos.2022.53824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023] Open
Abstract
Internal herniation may be seen more frequently in patients with intra-abdominal surgery and malignancy history. We presented a 58-year-old male patient diagnosed with rectal adenocarcinoma seven years ago with a history of surgery and pelvic radiotherapy. When the abdominal computed tomography (CT) image was taken during routine oncology follow-up, a lesion mimicking a serosal implant on the anterior abdominal wall was detected. 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET)/CT imaging was performed the suspicion of recurrence. It was concluded that the lesion, which was evaluated as an implant in abdominal CT with 18F-FDG PET/CT imaging, was a spontaneously reducing internal herniation. 18F-FDG PET/CT imaging in cancer patients is crucial in illuminating the suspicion of recurrent lesions in these patients and sheds light on the course of the patients in oncology practice.
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Affiliation(s)
- Sibel Göksel
- Recep Tayyip Erdoğan University Faculty of Medicine, Department of Nuclear Medicine, Rize, Turkey,* Address for Correspondence: Recep Tayyip Erdoğan University Faculty of Medicine, Department of Nuclear Medicine, Rize, Turkey Phone: +90 543 389 77 14 E-mail:
| | - Mustafa Başaran
- Recep Tayyip Erdoğan University Faculty of Medicine, Department of Radiology, Rize, Turkey
| | - Hasan Gündoğdu
- Recep Tayyip Erdoğan University Faculty of Medicine, Department of Radiology, Rize, Turkey
| | - Cengiz Karaçin
- Dr. Abdurrahman Yurtaslan Training and Research Hospital, Clinic of Medical Oncology, Ankara, Turkey
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2
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Finite-time non-fragile control for synchronization of fractional-order stochastic neural networks. Soft comput 2023. [DOI: 10.1007/s00500-022-07692-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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3
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Sakthivel R, S.A K, Wang C, S K. Finite-time reliable sampled-data control for fractional-order memristive neural networks with quantisation. J EXP THEOR ARTIF IN 2022. [DOI: 10.1080/0952813x.2021.1960626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- R. Sakthivel
- Department of Applied Mathematics, Bharathiar University, Coimbatore, India
| | - Karthick S.A
- Department of Mathematics, Anna University Regional Campus, Coimbatore, India
| | - Chao Wang
- Department of Mathematics, Yunnan University, Kunming, Yunnan, China
| | - Kanakalakshmi S
- Department of Mathematics, Anna University Regional Campus, Coimbatore, India
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4
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Achouri H, Aouiti C. Dynamical behavior of recurrent neural networks with different external inputs. INT J BIOMATH 2021. [DOI: 10.1142/s1793524522500103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The main aim of this paper is to study the dynamics of a recurrent neural networks with different input currents in terms of asymptotic point. Under certain circumstances, we studied the existence, the uniqueness of bounded solutions and their homoclinic and heteroclinic motions of the considered system with rectangular currents input. Moreover, we studied the unpredictable behavior of the continuous high-order recurrent neural networks and the discrete high-order recurrent neural networks. Our method was primarily based on Banach’s fixed-point theorem, topology of uniform convergence on compact sets and Gronwall inequality. For the demonstration of theoretical results, we give examples and their numerical simulations.
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Affiliation(s)
- Houssem Achouri
- Department of Mathematics, Faculty of Sciences of Bizerta, University of Carthage, GAMA Laboratory LR21ES10, BP W 7021 Zarzouna, Bizerta, Tunisia
| | - Chaouki Aouiti
- Department of Mathematics, Faculty of Sciences of Bizerta, University of Carthage, GAMA Laboratory LR21ES10, BP W 7021 Zarzouna, Bizerta, Tunisia
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Aouiti C, Hui Q, Jallouli H, Moulay E. Sliding mode control-based fixed-time stabilization and synchronization of inertial neural networks with time-varying delays. Neural Comput Appl 2021. [DOI: 10.1007/s00521-021-05833-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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6
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7
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Fixed-time synchronization control for a class of nonlinear coupled Cohen–Grossberg neural networks from synchronization dynamics viewpoint. Neurocomputing 2020. [DOI: 10.1016/j.neucom.2020.02.111] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Synchronization of semi-Markov coupled neural networks with impulse effects and leakage delay. Neurocomputing 2020. [DOI: 10.1016/j.neucom.2019.12.097] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zhang G, Zeng Z. Stabilization of Second-Order Memristive Neural Networks With Mixed Time Delays via Nonreduced Order. IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS 2020; 31:700-706. [PMID: 31056523 DOI: 10.1109/tnnls.2019.2910125] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this brief, we investigate a class of second-order memristive neural networks (SMNNs) with mixed time-varying delays. Based on nonsmooth analysis, the Lyapunov stability theory, and adaptive control theory, several new results ensuring global stabilization of the SMNNs are obtained. In addition, compared with the reduced-order method used in the existing research studies, we consider the global stabilization directly from the SMNNs themselves without the reduced-order method. Finally, we give some numerical simulations to show the effectiveness of the results.
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Fixed-time synchronization of competitive neural networks with proportional delays and impulsive effect. Neural Comput Appl 2019. [DOI: 10.1007/s00521-019-04654-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Aouiti C, Miaadi F. A new fixed-time stabilization approach for neural networks with time-varying delays. Neural Comput Appl 2019. [DOI: 10.1007/s00521-019-04586-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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Piecewise Pseudo Almost-Periodic Solutions of Impulsive Fuzzy Cellular Neural Networks with Mixed Delays. Neural Process Lett 2019. [DOI: 10.1007/s11063-019-10130-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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13
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Global dissipativity of high-order Hopfield bidirectional associative memory neural networks with mixed delays. Neural Comput Appl 2019. [DOI: 10.1007/s00521-019-04552-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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14
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Effect of leakage delay on finite time boundedness of impulsive high-order neutral delay generalized neural networks. Neurocomputing 2019. [DOI: 10.1016/j.neucom.2018.12.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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Finite-time and fixed-time synchronization of a class of inertial neural networks with multi-proportional delays and its application to secure communication. Neurocomputing 2019. [DOI: 10.1016/j.neucom.2018.11.020] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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16
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Aouiti C, Assali EA. Stability Analysis for a Class of Impulsive Bidirectional Associative Memory (BAM) Neural Networks with Distributed Delays and Leakage Time-Varying Delays. Neural Process Lett 2018. [DOI: 10.1007/s11063-018-9937-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Aouiti C, Li X, Miaadi F. A New LMI Approach to Finite and Fixed Time Stabilization of High-Order Class of BAM Neural Networks with Time-Varying Delays. Neural Process Lett 2018. [DOI: 10.1007/s11063-018-9939-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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$$(\mu ,\nu )$$(μ,ν)-Pseudo-almost automorphic solutions for high-order Hopfield bidirectional associative memory neural networks. Neural Comput Appl 2018. [DOI: 10.1007/s00521-018-3651-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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20
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Aouiti C, Assali EA. Stability analysis for a class of impulsive high-order Hopfield neural networks with leakage time-varying delays. Neural Comput Appl 2018. [DOI: 10.1007/s00521-018-3585-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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21
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Peng D, Li X, Aouiti C, Miaadi F. Finite-time synchronization for Cohen–Grossberg neural networks with mixed time-delays. Neurocomputing 2018. [DOI: 10.1016/j.neucom.2018.03.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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22
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Li Y, Qin J, Li B. Anti-periodic Solutions for Quaternion-Valued High-Order Hopfield Neural Networks with Time-Varying Delays. Neural Process Lett 2018. [DOI: 10.1007/s11063-018-9867-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Piecewise asymptotically almost automorphic solutions for impulsive non-autonomous high-order Hopfield neural networks with mixed delays. Neural Comput Appl 2018. [DOI: 10.1007/s00521-018-3378-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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24
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Yang G. Exponential Stability of Positive Recurrent Neural Networks with Multi-proportional Delays. Neural Process Lett 2018. [DOI: 10.1007/s11063-018-9802-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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26
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Pullback attractor for neutral Hopfield neural networks with time delay in the leakage term and mixed time delays. Neural Comput Appl 2018. [DOI: 10.1007/s00521-017-3314-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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