Publications by authors named "Marcos R Queiroz"
Background: Use of transrectal ultrasound (US)-guided biopsies improved diagnosis and treatment for patients with high prostate-specific antigen (PSA) or abnormal digital rectal exam (DRE).
Purpose: To investigate whether taking two transition zone (TZ) biopsies in addition to routine prostate double-sextant biopsies (12-cores) would improve detection rates of prostate cancer (PCa).
Material And Methods: A retrospective analysis of 1107 in a single institution database after Institutional Review Board approval, which underwent US-guided prostate biopsies from January 2014 to June 2016.
Objective:: 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.
Objective: To evaluate the diagnostic efficacy of transrectal ultrasonography (US) bi¬opsy with imaging fusion using multiparametric (mp) magnetic resonance imaging (MRI) in patients with suspicion of prostate cancer (PCa), with an emphasis on clini¬cally significant tumors according to histological criteria.
Materials And Methods: A total of 189 consecutive US/MRI fusion biopsies were per¬formed obtaining systematic and guided samples of suspicious areas on mpMRI using a 3 Tesla magnet without endorectal coil. Clinical significance for prostate cancer was established based on Epstein criteria.
Objective: To correlate the Thyroid Imaging Reporting and Data System (TI-RADS) and the Bethesda system in reporting cytopathology in 1,000 thyroid nodules.
Methods: A retrospective study conducted from November 2011 to February 2014 that evaluated 1,000 thyroid nodules of 906 patients who underwent ultrasound exam and fine needle aspiration.
Results: A significant association was found between the TI-RADS outcome and Bethesda classification (p<0.
Magnetic resonance/transrectal ultrasound fusion biopsy of the prostate compared to systematic 12-core biopsy for the diagnosis and characterization of prostate cancer: multi-institutional retrospective analysis of 389 patients.
Urol Oncol
September 2016
Objective: To determine the incremental diagnostic value of targeted biopsies added to an extended sextant biopsy scheme on a per-patient, risk-stratified basis in 2 academic centers using different multiparametric magnetic resonance imaging (MRI) protocols, a large group of radiologists, multiple biopsy systems, and different biopsy operators.
Materials And Methods: All patients with suspected prostate cancer (PCa) who underwent multiparametric MRI of the prostate in 2 academic centers between February 2013 and January 2015 followed by systematic and targeted MRI-transrectal ultrasound fusion biopsy were reviewed. Risk-stratified detection rate using systematic biopsies was compared with targeted biopsies on a per-patient basis.
High correlation between microbubble contrast-enhanced ultrasound, magnetic resonance and histopathology in the evaluation of hepatocellular carcinoma.
Einstein (Sao Paulo)
December 2013
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.