BRUNO ARAGAO ROCHA
Projetos de Pesquisa
Unidades Organizacionais
LIM/44 - Laboratório de Ressonância Magnética em Neurorradiologia, Hospital das Clínicas, Faculdade de Medicina
15 resultados
Resultados de Busca
Agora exibindo 1 - 10 de 15
- Size is Not Everything That Matters: Preoperative CT Predictors of Stone Free After RIRS(2019) DANILOVIC, Alexandre; ROCHA, Bruno Aragao; TORRICELLI, Fabio Cesar Miranda; MARCHINI, Giovanni Scala; BATAGELLO, Carlos; VICENTINI, Fabio Carvalho; TRAXER, Olivier; VIANA, Publio Cesar Cavalcante; SROUGI, Miguel; NAHAS, William C.; MAZZUCCHI, EduardoOBJECTIVE To define computed tomography (CT) predictors of residual fragments after retrograde intrarenal surgery (RIRS) for kidney stones up to 20 mm in patients never submitted to surgical procedures for stone removal. METHODS From August 2016 to August 2017, symptomatic adult patients with kidney stones less than 20 mm treated by RIRS had their pre- and postoperative CT prospectively evaluated in search for predictors of residual stone fragments. Stone size, stone volume, number of stones, stone density, and location were evaluated in preoperative CT and analyzed as predictors for residual stone fragments on 90 POD CT. Stone location was represented by the infundibulopelvic angle (IPA) measured for each stone on preoperative noncontrast CI using multiplanar reconstruction. RESULTS Ninety-two patients were successfully submitted to RIRS. Bilateral procedures were performed in 23 patients (25%) resulting in 115 renal units operated. Operative time was 54.5 +/- 26.7 minutes (mean +/- SD) and 96.7% (89/92) of the patients were discharged up to 12 hours after the procedure. Postoperative CI demonstrated stone-free in 86 of 115 (74.8%), 0-2 mm in 10 of 115 (8.7%), and > 2 mm residual fragments in 19 of 115 (16.5%) procedures. Logistic regression analysis revealed steep IPA was a predictor for any residual stone fragment after RIRS for kidney stones < 20 mm (P= .012). ROC curve showed that IPA < 41 degrees was associated with a higher chance of residual fragments after RIRS. CONCLUSION IPA < 41 degrees is associated with a higher chance of residual fragments after RIRS for kidney stones up to 20 mm. (C) 2019 Elsevier Inc.
conferenceObject DATABASE DESIGN AND IMPLEMENTATION OF A CONVOLUTIONAL NEURAL NETWORK (CNN) FOR LIVER SEGMENTATION(2020) CICONELLE, Ana Claudia Claudia Martins; ROCHA, Bruno; VIANNA, Luis Gustavo Rocha; LEITE, Jean Michel Rocha Sampaio; CORTEZ JR., Joao Martin; ONO, Suzane Kioko- Use of three-dimensional virtual images for planning surgery of complex anal fistulas: a new technology available via smartphone(2019) SOUSA JUNIOR, E. C.; EULALIO FILHO, W. M. N.; NOGUEIRA, A. T.; ROCHA, B. A.; MENESES, A. D.
- The Use of Three-dimensional Printers for Partial Adrenalectomy: Estimating the Resection Limits(2016) SROUGI, Victor; ROCHA, Bruno A.; TANNO, Fabio Y.; ALMEIDA, Madson Q.; BARONI, Ronaldo H.; MENDONA, Berenice B.; SROUGI, Miguel; FRAGOSO, Maria C.; CHAMBO, Jose L.OBJECTIVE To avoid hormonal replacement after partial adrenalectomy (PA), establishing the precise limit of an adrenal gland resection is essential. Herein, we evaluated the use of three-dimensional (3D) adrenal gland printing and volumetry measurement before PA to improve the determination of the remnant gland volume. METHODS Concomitant total adrenalectomy and a contralateral PA were performed in a patient with primary macronodular adrenal hyperplasia that exhibited mild hypercortisolism, arterial hypertension, and diabetes. Before surgery, a 3D replica of the adrenal gland to be partially resected was printed and given to the surgeon. The volumetry of the gland was measured by computed tomography 3D image reconstruction. RESULTS No postoperative complications were noted. Immediately after the surgery, the patient initiated corticosteroid replacement, which was interrupted 52 days later. At the 6-month follow-up, the patient stopped using medications for diabetes and reduced the number of antihypertensive medications from 5 to 1. The pre- and postoperative serum cortisol levels were, respectively, 28 and 8.7 mcg/dl (n 5-25 mcg/dl). The pre-and postoperative adrenocorticotropic hormone levels were, respectively, <5 and 88 pg/ml (n 7.2-63 pg/ml). The postoperative adrenal volume was 12% of the total preoperative adrenal volume. CONCLUSION The use of 3D printing associated with adrenal volumetry might be a useful tool for the surgeon when performing PA, enabling an estimation of the remnant gland volume. (C) 2016 Elsevier Inc.
conferenceObject DETECTION OF MACROSCOPIC LIVER MORPHOLOGICAL CHANGES ON COMPUTED TOMOGRAPHY USING A DEEP LEARNING TECHNIQUE.(2022) ROCHA, Bruno; FERREIRA, Lorena Carneiro; VIANNA, Luis Gustavo Rocha; FERREIRA, Luma Gallacio Gomes; CICONELLE, Ana Claudia Claudia Martins; NORONHA, Alex Da Silva; CORTEZ, Joao M.; NOGUEIRA, Lucas Salume Lima; LEITE, Jean Michel Rocha Sampaio; SILVA FILHO, Mauricio Ricardo Moreira Da; LEITE, Claudia Da Costa; FELIX, Marcelo De Maria; NOMURA, Cesar Higar; GUTIERREZ, Marco Antonio; CERRI, Giovanni Guido; CARRILHO, Flair Jose; ONO, Suzane KiokoconferenceObject Artificial Intelligence in medical imaging of the liver-a convolutional neural network solution for Computed Tomography exam phases recognition(2021) CORTEZ FILHO, Joao Martins; VIANNA, Luis Gustavo Rocha; CICONELLE, Ana; ROCHA, Bruno Aragao; LEITE, Jean Michel Rocha Sampaio; NOGUEIRA, Lucas Salume Lima; GUIMARAES, Lenon Liberdade Alvares; SILVA FILHO, Mauricio Ricardo Moreira da; FERREIRA, Lorena Carneiro; OLIVEIRA, Brunna; PAIVA, Wesley Borges de; LAZZARO FILHO, Ricardo di; ONO, Suzane KiokoconferenceObject NEPHROMETRY SCORES ARE USELESS FOR EXPERIENCED UROLOGISTS IN CLINICAL PRACTICE(2017) NONEMACHER, Henrique; GUGLIELMETTI, Giuliano; ALBUQUERQUE, George Lins de; COELHO, Rafael; CORDEIRO, Mauricio; FAZOLI, Arnaldo; CARVALHO, Paulo Afonso; FREIRE, Tiago Magalhaes; HAYEK, Kayann Kaled R. el; PAGOTTO, Vitor; ALBUQUERQUE, George Lins de; ROCHA, Bruno Aragao; RODRIGUES, Diego Parga; KANAS, Alexandre Fligelman; VIANA, Publio Cesar Cavalcanti; NAHAS, Willian- Assessment of Residual Stone Fragments After Retrograde Intrarenal Surgery(2018) DANILOVIC, Alexandre; CAVALANTI, Andrea; ROCHA, Bruno Aragao; TRAXER, Olivier; TORRICELLI, Fabio Cesar Miranda; MARCHINI, Giovanni Scala; MAZZUCCHI, Eduardo; SROUGI, MiguelObjectives: To define the most suitable approach to assess residual stone fragments after retrograde intrarenal surgery (RIRS). Methods: Ninety-two patients (115 renal units) submitted to RIRS for symptomatic kidney stones >5mm and <20mm or <15mm in the lower Calyx diagnosed by noncontrast CT (NCCT) were prospectively studied. Residual fragments were assessed by endoscopic evaluation (END) at the end of the procedure and by NCCT, ultrasonography (US), and kidney, ureter, and bladder radiograph (KUB) on the 90th postoperative day (POD). NCCT was considered the gold standard for the evaluation of residual fragments after RIRS. Results: The 90th POD NCCT resulted in stone-free status in 74.8% (86/115), 0-2mm in 8.7% (10/115), and >2mm residual fragments in 16.5% (19/115) renal units. Stone-free status by END at the end of RIRS was coincident with NCCT in 93.0% of the cases (40/43). There were no cases of residual fragments >2mm on NCCT if END resulted in stone-free status. In all cases where END resulted in residual fragments >2mm, US proved to be correct according to NCCT. Neither US nor KUB was able to identify residual fragments between 0 and 2mm. KUB had only 31.6% (6/19) sensitivity to detect residual fragments >2mm and did not add sensitivity or specificity to US. Conclusions: In the follow-up imaging after RIRS, we suggest that if END resulted in residual fragments <2mm, a 90th POD NCCT should be performed. US may be used if END showed fragments >2mm.
bookPart Pênis e testículos(2017) ROCHA, Bruno Aragão; POLIZIO, Rodrigo Pamplona- THREE-DIMENSIONAL PRINTING IN ORTHOPEDICS : WHERE WE STAND AND WHERE WE ARE HEADING(2021) EJNISMAN, Leandro; HELITO, Camilo Partezani; CAMARGO, Andre Ferrari De Franca; ROCHA, Bruno Aragao; BAPTISTA, Andre Mathias; CAMARGO, Olavo Pires DeThree-dimensional printing is a technology in expansion in the medical field. It also presents many applications in orthopedics. Our review article aims to describe 3D printing, types of 3D printers, and its use in the orthopedic field. 3D models can be created using tomography scans. Those models can then be manipulated, even simulating surgeries. It is possible to print biomodels, which will help us understand deformities and plan surgeries. Orthopedic surgeons must be updated in these disruptive technologies that may help their daily practice. Level of Evidence V, Expert opinion.