SERGIO KEIDI KODAIRA

(Fonte: Lattes)
Índice h a partir de 2011
2
Lattes
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Instituto de Radiologia, Hospital das Clínicas, Faculdade de Medicina

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Agora exibindo 1 - 6 de 6
  • bookPart
    Doenças da região selar e dos tecidos adjacentes
    (2017) NASCIMENTO, Felipe Barjud Pereira do; KODAIRA, Sergio Keidi; SILVA, Fábio Eduardo Fernandes da
  • bookPart
    Diagnóstico por Imagens em Gerontologia
    (2016) KODAIRA, Sergio Keidi
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  • bookPart
    Diagnóstico por Imagem nas Doenças do Hipotálamo-hipófise
    (2016) KODAIRA, Sergio Keidi; LUCATO, Leandro Tavares
  • article 8 Citação(ões) na Scopus
    Persistence of intrasellar trigeminal artery and simultaneous pituitary adenoma: description of two cases and their importance for the differential diagnosis of sellar lesions
    (2014) MACHADO, Marcio Carlos; KODAIRA, Sergio; MUSOLINO, Nina Rosa Castro
    Persistent trigeminal artery (PTA) is the most frequent embryonic communication between the carotid and vertebrobasilar systems. However, hormonal changes or the association of PTA with other sellar lesions, such as pituitary adenomas, are extremely rare. The aim of the present study was to report two patients with intrasellar PTA and simultaneous pituitary adenoma in order to emphasize the importance of differential diagnoses for sellar lesions. Case 1. A female patient, 41 years old, was admitted with a history of chronic headache (> 20 years). Pituitary magnetic resonance imaging (MRI) showed a rounded lesion in the left portion of the pituitary gland suggestive of adenoma (most likely clinically non-functioning adenoma). In addition to this lesion, the MRI demonstrated ecstasy of the right internal carotid artery and imaging suggestive of an intrasellar artery that was subsequently confirmed by an angio-MRI of the cerebral vessels as PTA. Case 2. A female patient, 42 years old, was admitted with a history of amenorrhea and galactorrhea in 1994. Laboratorial investigation revealed hyperprolactinemia. Pituitary MRI showed a small hyposignal area in the anterior portion of pituitary gland suggestive of a microadenoma initiated by a dopaminergic agonist. Upon follow-up, aside from the first lesion, the MRI showed a well delineated rounded lesion inside the pituitary gland, similar to a vessel. Angio-MRI confirmed a left primitive PTA. Failure to recognize these anomalous vessels within the sella might lead to serious complications during transsphenoidal surgery. Therefore, although their occurrence is uncommon, a working knowledge of vascular lesions in the sella turcica or pituitary gland is important for the differential diagnosis of pituitary lesions, especially pituitary adenomas.
  • article 4 Citação(ões) na Scopus
    Value of ultrasound in the anatomical evaluation of the brachial plexus: correlation with magnetic resonance imaging
    (2018) CALDANA, Wanda Chiyoko Iwakami; KODAIRA, Sergio Keidi; CAVALCANTI, Conrado Furtado de Albuquerque; RODRIGUES, Marcelo Bordalo; SAITO, Osmar de Cassio; BUCHPIGUEL, Carlos Alberto
    Abstract Objective: To assess the accuracy of ultrasound in the visualization of the brachial plexus and to determine the value of the method in comparison with that of magnetic resonance imaging (MRI). Materials and Methods: This was an anatomical study of the brachial plexuses of 20 asymptomatic adults (40 plexuses), comparing ultrasound and MRI in terms of their accuracy. In the ultrasound study, a high-frequency linear transducer was used, and a neurovascular coil was used in the MRI study. To estimate the frequency of visualization, the brachial plexus was divided into segments. Results: The cervical nerve roots, the upper trunk, and the middle trunk were the segments that were best visualized on ultrasound. On MRI, the degree of visualization was excellent for most of the segments. In the comparison between ultrasound and MRI, the C6, C7, upper trunk, and middle trunk segments showed equivalent degrees of visualization, with a high level of agreement between the two methods. Conclusion: In the brachial plexus, ultrasound can be used in the assessment of the cervical nerve roots, as well as of the upper and middle trunks, although it provides limited visualization of the remaining segments. Ultrasound and MRI showed a high level of agreement for the visualization of the C6, C7, and middle trunk segments.