PUBLIO CESAR CAVALCANTE VIANA
Índice h a partir de 2011
8
Projetos de Pesquisa
Unidades Organizacionais
Instituto de Radiologia, Hospital das Clínicas, Faculdade de Medicina
LIM/44 - Laboratório de Ressonância Magnética em Neurorradiologia, Hospital das Clínicas, Faculdade de Medicina
LIM/44 - Laboratório de Ressonância Magnética em Neurorradiologia, Hospital das Clínicas, Faculdade de Medicina
6 resultados
Resultados de Busca
Agora exibindo 1 - 6 de 6
- Revisiting Prostate Cancer Recurrence with PSMA PET: Atlas of Typical and Atypical Patterns of Spread(2019) BARBOSA, Felipe G.; QUEIROZ, Marcelo A.; NUNES, Rafael F.; VIANA, Publio C. C.; MARIN, Jose Flavio G.; CERRI, Giovanni G.; BUCHPIGUEL, Carlos A.The introduction of prostate-specific membrane antigen (PSMA) in clinical practice has revolutionized evaluation of biochemical recurrence of prostate cancer after curative-intent treatment. The high expression of this glycoprotein in prostate cancer cells makes PSMA imaging superior to the current conventional staging methods, namely bone scanning and CT. The high capability of PSMA imaging for identifying very small previously undetected lesions has been widely demonstrated in the literature, leading to a rethinking of patient management by oncologists, urologists, and radiation oncologists. The typical and predictable patterns of spread in prostate cancer are still more prevalent, such as spread to pelvic lymph nodes and bone metastasis, but different patterns of disease spread are becoming more commonly recognized with higher reliability because PSMA imaging allows detection of more typical and atypical lesions than conventional imaging. Furthermore, it is important for the reading physician to recognize and understand the typical disease spread and the most prevalent atypical prostate cancer relapses, not only to heighten the relevancy of reports but also to improve imaging consultancy in multispecialty oncologic practice. (C) RSNA, 2019.
- Percutaneous thermoablation of small renal masses (T1a) in surgical candidate patients: oncologic outcomes(2021) ZANGIACOMO, Renato N.; MARTINS, Guilherme L. P.; VIANA, Publio C. C.; HORVAT, Natally; ARAP, Marco A.; NAHAS, William C.; SROUGI, Miguel; CERRI, Giovanni G.; MENEZES, Marcos R.Objective To evaluate the local tumour progression-free survival (LTPFS), metastasis-free survival (MFS), cancer-specific survival (CSS) and overall survival (OS) of healthy surgical candidates who underwent percutaneous thermoablation (TA) as a first-line therapy for small renal masses (T1a). Methods The institutional review board approved this bi-institutional retrospective study of 85 consecutive surgical candidates with 97 biopsy-proven malignant renal masses (T1a) treated with percutaneous TA from 2008 to 2016. The LTPFS, MFS, CSS and OS rates were calculated using the Kaplan-Meier method. Descriptive analysis was also performed. Results The median tumour size was 2.3 cm (range, 0.7-3.9 cm). The minimal and mean follow-up periods were 24 and 56 months, respectively. Local recurrence was detected in four patients (4.7%) at 8.5, 13.8, 58.0 and 64.0 months of follow-up and retreated successfully with percutaneous TA. No patient developed metastatic renal cell carcinoma, and none died due to renal oncologic complications. One patient died of heart attack. The 5-year LTPFS, OS, MFS and CSS rates were 93.0%, 98.4%, 100% and 100%, respectively. Only two patients (2.3%) had major complications (Clavien-Dindo grade > II), including ureteropelvic junction stenosis and urinary obstruction due to ureteral blood clots. Conclusions Our study demonstrates that percutaneous TA is a feasible and effective first-line therapy for healthy surgical candidates with small renal masses (T1a). The 5-year LTPFS, OS, CSS and MFS rates were 93.0%, 98.4%, 100% and 100%, respectively, with a major complication rate of only 2.3%.
- Prostatic Artery Embolization: Indications, Preparation, Techniques, Imaging Evaluation, Reporting, and Complications(2021) JR, Ubenicio Silveira Dias; MOURA, Mauricio Ruettimann Liberato de; VIANA, Publio Cesar Cavalcante; ASSIS, Andre Moreira de; MARCELINO, Antonio Sergio Zanfred; MOREIRA, Airton Mota; LEITE, Claudia Costa; CERRI, Giovanni Guido; CARNEVALE, Francisco Cesar; HORVAT, NatallyBenign prostatic hyperplasia (BPH) is a noncancerous growth of the transitional zone of the prostate, which surrounds the prostatic urethra. Consequently, it can cause lower urinary tract symptoms (LUTS) and bladder outlet obstruction symptoms that may substantially reduce a patient's quality of life. Several treatments are available for BPH, including medications such as alpha-blockers and 5 alpha-reductase inhibitors and surgical options including transurethral resection of the prostate and prostatectomy. Recently, prostatic artery embolization (PAE) has emerged as a minimally invasive treatment option for selected men with BPH and moderate to severe LUTS. Adequate pre- and postprocedural evaluations with clinical examinations and questionnaires, laboratory tests, and urodynamic and imaging examinations (particularly US, MRI, and CT) are of key importance to achieve successful treatment. Considering that the use of PAE has been increasing in tertiary hospital facilities, radiologists and interventional radiologists should be aware of the main technical concepts of PAE and the key features to address in imaging reports in pre- and postprocedural settings. An invited commentary by Lopera is available online. Online supplemental material is available for this article. (C) RSNA, 2021
- Ovarian cancer staging: What the surgeon needs to know(2021) OLIVEIRA, Lucas Roberto Lelis Botelho de; HORVAT, Natally; ANDRIEU, Pamela Ines Causa; PANIZZA, Pedro Sergio Brito; CERRI, Giovanni Guido; VIANA, Publio Cesar CavalcanteOvarian cancer (OC) is the leading cause of gynecological cancer death, and most cases sire diagnosed at advanced stages due to a nonspecific and insidious clinical presentation. Radiologists play a critical role in the decision of which patients are candidates for primary debulking surgery and who may benefit from neoadjuvant chemotherapy. This pictorial review summarizes the dissemination patterns of OC, main imaging findings of metastatic disease, and which findings may alter the treatment plan or predict suboptimal tumor resection.
- Radiofrequency ablation for treatment of hypersplenism: A feasible therapeutic option(2015) MARTINS, Guilherme Lopes P.; BERNARDES, Joao Paulo G.; ROVELLA, Marcello S.; ANDRADE, Raphael G.; VIANA, Publio Cesar C.; HERMAN, Paulo; CERRI, Giovanni Guido; MENEZES, Marcos RobertoWe present a case of a patient with hypersplenism secondary to portal hypertension due to hepato-splenic schistosomiasis, which was accompanied by severe and refractory thrombocytopenia. We performed spleen ablation and measured the total spleen and ablated volumes with contrast-enhanced computed tomography and volumetry. No major complications occurred, thrombocytopenia was resolved, and platelet levels remained stable, which allowed for early treatment of the patient's underlying disease. Previous work has shown that splenic radiofrequency ablation is an attractive alternative treatment for hypersplenism induced by liver cirrhosis. We aimed to contribute to the currently sparse literature evaluating the role of radiofrequency ablation (RFA) in the management of hypersplenism. We conclude that splenic RFA appears to be a viable and promising option for the treatment of hypersplenism.
bookPart Intervenção radiológica(2013) MENEZES, Marcos Roberto de; ODISIO, Bruno Calazans; CAVALCANTI, Conrado F. A.; DONATO JUNIOR, Francisco; SIQUEIRA, Luiz; RODRIGUES, Marcelo Bordalo; VIANA, Públio C. C.; GARCIA, Rodrigo Gobbo; JULIO, Thiago; CERRI, Giovanni Guido