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TArgeted Motion Estimation and Reduction (TAMER): Data Consistency Based Motion Mitigation for MRI Using a Reduced Model Joint Optimization
We introduce a data consistency based retrospective motion correction method, TArgeted Motion Estimation and Reduction (TAMER), to correct for patient motion in Magnetic Resonance Imaging (MRI). Specifically, a motion free image and motion trajectory are jointly estimated by minimizing the data consistency error of a SENSE forward model including rigid-body subject motion. In order to efficiently solve this large non-linear optimization problem, we employ reduced modeling in the parallel imaging formulation by assessing only a subset of target voxels at each step of the motion search. With this strategy we are able to effe...
Source: IEE Transactions on Medical Imaging - May 1, 2018 Category: Biomedical Engineering Source Type: research

The Continuing Evolution of Molecular Functional Imaging in Clinical Oncology: The Road to Precision Medicine and Radiogenomics (Part I)
AbstractThe present era of precision medicine sees ‘cancer’ as a consequence of molecular derangements occurring at the commencement of the disease process, with morphologic changes happening much later in the process of tumorigenesis. Conventional imaging techniques, such as computed tomography (CT), ultrasound, and magnetic resonance imaging ( MRI), play an integral role in the detection of disease at a macroscopic level. However, molecular functional imaging (MFI) techniques entail the visualisation and quantification of biochemical and physiological processes occurring during tumorigenesis, and thus has the potenti...
Source: Molecular Diagnosis and Therapy - November 8, 2018 Category: Molecular Biology Source Type: research

Management of delivery of a fetus with autosomal recessive polycystic kidney disease: a case report of abdominal dystocia and review of the literature
ConclusionsManagement of delivery in cases of suspected autosomal recessive renal polycystic kidney disease needs to be discussed because of the risk of abdominal dystocia. The route and timing of delivery depend on the size of the fetal abdominal circumference and the gestational age. The rate of kidney growth must also be taken into account.
Source: Journal of Medical Case Reports - December 11, 2019 Category: General Medicine Source Type: research

Magnetic resonance imaging and ultrasound for assessing parametrial infiltration in cervical cancer. A systematic review and meta-analysis.
CONCLUSION: Ultrasound and MRI have similar diagnostic performance for detecting parametrial infiltration in women with cervical cancer. This might have relevance from the clinical point of view, since ultrasound is cheaper than MRI. PMID: 32096793 [PubMed - as supplied by publisher]
Source: Medical Ultrasonography - February 26, 2020 Category: Radiology Tags: Med Ultrason Source Type: research

Perianal fistulas: A review with emphasis on preoperative imaging
CONCLUSIONS: Future well-designed prospective studies are needed to investigate the diagnostic accuracy of pelvic MRI and EAUS in the preoperative assessment of patients with perianal fistulas. Moreover, the combination of pelvic MRI and EAUS should also be studied, since several published articles suggest that it could lead to improved diagnostic accuracy. A novel treatment algorithm for perianal fistulas could arise from this study.PMID:35134600 | DOI:10.1016/j.advms.2022.01.002
Source: Advances in Medical Sciences - February 8, 2022 Category: Biomedical Science Authors: Nikolaos Varsamis Christoforos Kosmidis Grigorios Chatzimavroudis Konstantinos Sapalidis Christoforos Efthymiadis Fani Apostolidou Kiouti Aris Ioannidis Christos Arnaoutoglou Paul Zarogoulidis Isaak Kesisoglou Source Type: research