20 results

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 […]

High correlation between microbubble contrast-enhanced ultrasound, magnetic resonance and histopathology in the evaluation of hepatocellular carcinoma

Marcos Roberto Gomes de Queiroz, Miguel José Francisco Neto, Rodrigo Gobbo Garcia, Antonio Rahal Junior, Paolo Salvalaggio, Marcelo Buarque de Gusmão Funari

DOI: 10.1590/S1679-45082013000400017

OBJECTIVES:To evaluate the efficacy of microbubble contrast ultrasound in diagnosis of hepatocellular carcinoma and to compare its results with those of magnetic resonance and histopathology.METHODS:A total of 29 patients suffering from chronic liver diseases and awaiting liver transplants at Hospital Israelita Albert Einstein were subject to magnetic resonance, microbubble contrast ultrasound, and excision liver biopsies.RESULTS:Excellent agreement between magnetic resonance and microbubble contrast ultrasound was observed in this study. There was moderate agreement between both imaging methods and histopathology results.CONCLUSION:Microbubble contrast […]

Endometrium evaluation with high-field (3-Tesla) magnetic resonance imaging in patients submitted to uterine leiomyoma embolization

Monica Amadio Piazza Jacobs, Felipe Nasser, Eduardo Zlotnik, Marcos de Lorenzo Messina, Ronaldo Hueb Baroni

DOI: 10.1590/S1679-45082013000100011

Objective:To evaluate the endometrial alterations related to embolization of uterine arteries for the treatment of symptomatic uterine leiomyomatosis (pelvic pain and/or uterine bleeding) by means of high-field (3-Tesla) magnetic resonance.METHODS:This is a longitudinal and prospective study that included 94 patients with a clinical and imaging diagnosis of symptomatic uterine leiomyomatosis, all of them treated by embolization of the uterine arteries. The patients were submitted to evaluations by high-field magnetic resonance of the pelvis before and 6 months after the procedure. […]

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