ABSTRACT:An algorithm for image matching of multi-sensor and multi-temporal satellite images is developed. The method is based on the SIFT feature detector proposed by Lowe in (Lowe, 1999). First, SIFT feature points are detected independently in two images (reference and sensed image). The features detected are invariant to image rotations, translations, scaling and also to changes in illumination, brightness and 3-dimensional viewpoint. Afterwards, each feature of the reference image is matched with one in the sensed image if, and only if, the distance between them multiplied by a threshold is shorter than the distances between the point and all the other points in the sensed image. Then, the matched features are used to compute the parameters of the homography that transforms the coordinate system of the sensed image to the coordinate system of the reference image. The Delaunay triangulations of each feature set for each image are computed. The isomorphism of the Delaunay triangulations is determined to guarantee the quality of the image matching. The algorithm is implemented in Matlab and tested on World-View 2, SPOT6 and TerraSAR-X image patches.
Background and aimsSARS-CoV-2 is a single-strained RNA virus belonging to Corona viridae's family. In paediatric age the majority of patients are asymptomatic, however several neurological manifestations associated with SARS-CoV-2 infection have been detected in a percentage of cases ranging from 17.3% to 36.4%. Acute Disseminated Encephalomyelitis (ADEM) has been recently included among the potential complications of SARS-CoV-2 infection. The available data regarding paediatric patient show only one case.
MethodsCase report: We present a case regarding a six-year-old child suffering from Fisher Evans Syndrome treated with Sirolimus and Thalidomide therapy and affected by SARS-CoV-2 infection.
ResultsCase report: We present a case regarding a six-year-old patient suffering from Fisher Evans Syndrome who was given Sirolimus and Thalidomide therapy. After ten days since the first positive nasopharyngeal swab for Sars-CoV-2, in which he had no symptoms, he presented an episode of generalized tonic-clonic seizure with spontaneous resolution. The patient underwent MRI which showed the typical picture of Acute Disseminated Encephalomyelitis. His clinical course was favourable, with a good response to cortisone therapy and a progressive improvement of the neuroradiological and electroencephalographic picture.
ConclusionsAccording to our knowledge, this is the second case of an Acute Disseminated Encephalomyelitis following SARS-CoV-2 infection in a paediatric patient, characterized by monosymptomatic onset, in which the immunosuppressive therapy practiced for the Fisher Evans Syndrome has probably contributed to a favourable evolution of ADEM, in contrast to other case described in the literature.
a lifetime depression frequency among people with FM was 65% (J.S. Løge-Hagena, et al., 2019). Additionally, fibromyalgia is more common in women (4.2%) than men (0.2%) (Mas, Carmona, Valverde, Ribas, & Group, 2008). This study aimed to investigate the prevalence of depression in patients with FM treated at the Neuro-Psychiatric Center in Riem (NPZR).
MethodsA total of 96 FM patients (19.8%, n = 19 male and 80.2%, n = 77 female) diagnosed with FM were selected from patient files between 2015 and 2021. Clinical interviews and the Beck Depression Inventory (BDI) had been conducted in FM patients to measure the level of depression.
ResultsThe sample showed a significant gender difference with 80.2% female patients, 49% of participants were between 51 and 60 years old. The study sample showed a high prevalence of severe depression (85.4%). Tinnitus, and migraine were the most common comorbidities (both 12.5%). 57.3% of patients enrolled in 2015 still continue their treatment.
ConclusionsThe ongoing research is in line with previous studies: FM patients are mainly female and older than 50 and demonstrate high levels of depression and comorbidities such as Tinnitus and Migraine.
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