Grading Fruits and Vegetables Using RGB-D Images and Convolutional Neural Network

This paper presents a method for grading fruits and vegetables by means of using RGB-D (RGB and depth) images and convolutional neural network (CNN). Here, we focus on grading according to the size of objects. First, the method transforms positions of pixels in RGB image so that the center of the object in 3D space is placed at the position equidistant from the focal point by means of using the corresponding depth image. Then, with the transformed RGB images involving equidistant objects, the method uses CNN for learning to classify the objects or fruits and vegetables in the images for grading according to the size, where the CNN is structured for achieving both size sensitivity for grading and shift invariance for reducing position error involved in images. By means of numerical experiments, we show the effectiveness and the analysis of the present method.The 2017 IEEE Symposium Series on Computational Intelligence (IEEE SSCI 2017), November 27 to December 1, 2017, Honolulu, Hawaii, US

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京都大学0048新制・課程博士博士(医学)甲第10104号医博第2614号新制||医||830(附属図書館)UT51-2003-H525京都大学大学院医学研究科内科系専攻(主査)教授 真鍋 俊明, 教授 光山 正雄, 教授 千葉 勉学位規則第4条第1項該当Doctor of Medical ScienceKyoto UniversityDA

Minimally invasive mitral valve repair via right mini-thoracotomy in patient with myelodysplastic syndrome

Abstract Background Cardiac surgery for myelodysplastic syndrome (MDS) patients is challenging because anemia and neutropenia develop as a result of the syndrome, leading to infection and bleeding tendency during surgery. We report the case of minimally invasive mitral valve repair via a right mini-thoracotomy and perioperative use of granulocyte colony-stimulating factor (G-CSF) in a patient with MDS. Case presentation A 77-year-old man with myelodysplastic syndrome (MDS) was referred for surgical treatment for mitral valve regurgitation and underwent a minimally invasive mitral valve repair via a right mini-thoracotomy (MICS mitral procedure). On admission, laboratory results showed a leukocyte count of 1500/μL and neutrophils at 190/μL. Prior to surgery, a subcutaneous injection of granulocyte colony-stimulating factor (G-CSF) was given, based on a diagnosis of MDS by a hematologist. The MICS-mitral procedure using artificial chordae and an annular ring prosthesis was completed without requiring re-exploration for bleeding. Postoperatively, a G-CSF injection was administered and transfusion was required. There was no infection complication and the postoperative course was uneventful. Conclusion A MICS-mitral procedure may be an effective option for MR patients with MDS who require a mitral valve repair to avoid postoperative infection and reduce the incidence of perioperative transfusion

The Impact of Opportunistic Infections on Clinical Outcome and Healthcare Resource Uses for Adult T Cell Leukaemia.

We examined the impact of opportunistic infections on in-hospital mortality, hospital length of stay (LOS), and the total cost (TC) among adult T-cell leukaemia (ATL) patients. In this retrospective cohort study, we identified 3712 patients with ATL using national hospital administrative data. Analysed opportunistic infections included Aspergillus spp., Candida spp., cytomegalovirus (CMV), herpes simplex virus (HSV), pneumocystis pneumonia (PCP), tuberculosis, varicella zoster virus (VZV), Cryptococcus spp., nontuberculous mycobacteria, and Strongyloides spp. Multilevel logistic regression analysis for in-hospital mortality and a multilevel linear regression analysis for LOS and TC were employed to determine the impact of opportunistic infections on clinical outcomes and healthcare resources. We found ATL patients infected with CMV had significantly higher in-hospital mortality (adjusted odds ratio (AOR) 2.29 [1.50-3.49] p < 0.001), longer LOS (coefficient (B): 0.13 [0.06-0.20] p < 0.001) and higher TC (B: 0.25 [0.17-0.32] p < 0.001) than those without CMV. Those with CAN and PCP were associated with a lower in-hospital mortality rate (AOR 0.72 [0.53-0.98] p = 0.035 and 0.54[0.41-0.73] p < 0.001, respectively) than their infections. VZV was associated with longer LOS (B: 0.13 [0.06-0.19] p < 0.001), while aspergillosis, HSV, or VZV infections were associated with higher TC (B: 0.16 [0.07-0.24] p < 0.001, 0.12 [0.02-0.23] p = 0.025, and 0.17 [0.10-0.24] p < 0.001, respectively). Our findings reveal that CMV infection is a major determinant of poor prognosis in patients affected by ATL