22 results

Ultrasonography and magnetic resonance imaging of elbow ligaments: a comparative study

Aureliano Torquato Brandão ORCID logo , Edson Amaro Junior ORCID logo , Miguel José Francisco Neto ORCID logo , Rubens Mitsuo Tanaka ORCID logo , Durval do Carmo Barros Santos ORCID logo , Frederico Celestino Miranda ORCID logo , [...]

DOI: 10.31744/einstein_journal/2019AO4579

ABSTRACT Objective: To determine the value of ultrasonography in elbow ligament assessment compared to magnetic resonance imaging. Methods: A prospective single-center study involving 30 volunteers with no elbow joint changes. Two experienced ultrasound specialists evaluated both elbows of each volunteer, resulting in 60 evaluations per physician and totaling up 120 evaluations. Magnetic resonance images were obtained using a 3-Tesla machine and evaluated by two experienced radiologists, totaling up 120 exams. Each examiner assigned subjective, zero-to-5 scores to ligaments imaged, where […]

The role of magnetic resonance imaging in Ménière disease: the current state of endolymphatic hydrops evaluation

Rafael Maffei Loureiro ORCID logo , Daniel Vaccaro Sumi ORCID logo , Marcelo Delboni Lemos ORCID logo , Hugo Luis de Vasconcelos Chambi Tames ORCID logo , Regina Lucia Elia Gomes ORCID logo , Mauro Miguel Daniel ORCID logo , [...]

DOI: 10.31744/einstein_journal/2019MD4743

ABSTRACT Technical advances in magnetic resonance imaging have allowed to accurately detect and grade endolymphatic space distension in Ménière disease; this was only possible in post-mortem histological studies until a few years ago. Magnetic resonance imaging rules out other causes of vertigo and hearing loss, and is able to evaluate the cochlear and vestibular compartments of the endolymphatic space using a dedicated protocol.

Current state of multiparameter magnetic resonance imaging of the prostate

Thais Caldara Mussi

DOI: 10.1590/S1679-45082018MD4408

ABSTRACT Magnetic resonance imaging of the prostate is an imaging method that has shown increasing relevance in urological practice. Due to technological evolution of scanners and the introduction of functional sequences, it has enabled greater accuracy in detection and characterization of prostate tumors.

Functional magnetic resonance imaging for clinical evaluation of uterine contractility

Vinicius Adami Vayego Fornazari, Stela Adami Vayego, Denis Szejnfeld, Jacob Szejnfeld, Suzan Menasce Goldman

DOI: 10.1590/S1679-45082018MD3863

ABSTRACT Uterine contractility out of the gestational phase, during the menstrual cycle and the habitual functional variations of the organ, this is one of the responsible mechanisms for reproduction and fertility, due to its direct action in the mechanisms conducting the spermatozoa to the ovule and in the decidual implantation. Pathologies such as uterine leiomyoma, endometriosis, adenomyosis, polycystic ovarian syndrome, as well as the use of intrauterine devices and oral contraceptives, may alter a functionality of uterine contractility. Thus, magnetic […]

Aspects of images in magnetic resonance of liver tumors treated with transarterial selective internal radiotherapy with yttrium-90

Breno Boueri Affonso, Joaquim Maurício da Motta-Leal-Filho, Francisco de Assis Cavalcante Jr., Francisco Leonardo Galastri, Rafael Noronha Cavalcante, Priscila Mina Falsarella, [...]

DOI: 10.1590/S1679-45082017RC4015

ABSTRACT Transarterial selective internal radiation therapy with yttrium-90, also known as radioembolization, is a therapy based on the administration of resin or glass microspheres loaded with the radioisotope yttrium-90, via selective arterial catheterization of tumor-feeding vessels. It is classified as a type of locoregional therapy and its main goal is to treat patients with primary or secondary hepatic lesions that are unresectable and not responsive to other therapies. Since it is a new technology still restricted to very few hospitals […]

A review of data in medical request and the patient questionnaire for magnetic resonance evaluation of silicone breast implants

Jaime Anger, Pablo Eduardo Elias, Paula de Camargo Moraes, Nelson Hamerschlak

DOI: 10.1590/S1679-45082017AO4147

ABSTRACT Objective: To analyze the quality and quantity of data in the questionnaires and in request forms for magnetic resonance imaging. Methods: This retrospective study was conducted with data from 300 medical records. The research used the following data from the questionnaires: patient age, reason for the magnetic resonance imaging, reason for placing the breast implant, report of any signs or symptoms, time elapsed since surgery to place the current breast implant, replacement implant surgery, chemotherapy, and/or radiation therapy treatments. […]

Multiparametric magnetic resonance imaging findings of prostatic pure leiomyomas

Thais Caldara Mussi, Yves Bohrer Costa, Marcos Takeo Obara, Marcos Roberto Gomes de Queiroz, Rodrigo Gobbo Garcia, José Antonio Domingos Cianciarulo Longo, [...]

DOI: 10.1590/S1679-45082016AO3715

ABSTRACTObjective:To describe the imaging findings of prostatic tumors nonadenocarcinoma on multiparametric magnetic resonance imaging.Methods:A total of 200 patients underwented multiparametric magnetic resonance imaging of the prostate for screening for prostate cancer, from August 2013 to September 2014, followed by biopsy with ultrasound/magnetic resonance imaging fusion.Results:We found three pathologic proved cases of prostatic pure leiomyomas (0.02%) in our series and described the multiparametric magnetic resonance imaging features of these prostatic leiomyomas. The imaging findings had similar features to lesions with moderate […]

Can lumbar hemorrhagic synovial cyst cause acute radicular compression? Case report

Luciana Sátiro Timbó, Laercio Alberto Rosemberg, Reynaldo André Brandt, Ricardo Botticini Peres, Olavo Kyosen Nakamura, Juliana Frota Guimarães

DOI: 10.1590/S1679-45082014RC3008

Lumbar synovial cysts are an uncommon cause of back pain and radiculopathy, usually manifesting with gradual onset of symptoms, secondary to involvement of the spinal canal. Rarely, intracyst hemorrhage occurs, and may acutely present as radicular – or even spinal cord – compression syndrome. Synovial cysts are generally associated with degenerative facets, although the pathogenesis has not been entirely established. We report a case of bleeding complication in a synovial cyst at L2-L3, adjacent to the right interfacet joint, causing […]

Rhino facial zygomycosis: case report

Juliana Miguita e Souza, Antonio José Sproesser Junior, Alexandre Felippu Neto, Florencia Barbero Fuks, Carlos Augusto Cardim de Oliveira

DOI: 10.1590/s1679-45082014rc2579

Zygomycosis is an invasive disease that affects both immunocompetent and immunocompromised, depending on the type of strain. This disease diagnosis is clinical and histopathological, and its treatment is based on antifungal therapy and surgical cleaning. This paper reports a case of a boy with invasive zygomycosis rinofacial who final treatment was successful after underwent antifungal and surgical therapies.

Iron overload in a teenager with xerocytosis: the importance of nuclear magnetic resonance imaging

Reijâne Alves de Assis, Carolina Kassab, Fernanda Salles Seguro, Fernando Ferreira Costa, Paulo Augusto Achucarro Silveira, John Wood, [...]

DOI: 10.1590/S1679-45082013000400022

To report a case of iron overload secondary to xerocytosis, a rare disease in a teenager, diagnosed, by T2* magnetic resonance imaging. We report the case of a symptomatic patient with xerocytosis, a ferritin level of 350ng/mL and a significant cardiac iron overload. She was diagnosed by T2* magnetic resonance imaging and received chelation therapy Ektacytometric analysis confirmed the diagnosis of hereditary xerocytosis. Subsequent T2* magnetic resonance imaging demonstrated complete resolution of the iron overload in various organs, as a […]

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