Hasil Pencarian  ::  Simpan CSV :: Kembali

"This book is intended as an introduction to neuroradiology and aims to provide the reader with a comprehensive overview of this highly specialized radiological subspecialty. One hundred illustrated cases from clinical practice are presented in a standard way. Each case is supported by representative images and is divided into three parts: a brief summary of the patient’s medical history, a discussion of the disease, and a description of the most characteristic imaging features of the disorder. The focus is not only on common neuroradiological entities such as stroke and acute head trauma but also on less frequent disorders that the practitioner should recognize."

"Images in urology is a unique book that integrates images of urological conditions within their clinical context. Improvements in imaging techniques have meant greater diagnostic power and a dramatic rise in the number and quality of images obtained and viewed by practicing clinicians. None more so than in the field of urology, where static and dynamic images are fundamental to the diagnosis and treatment of almost all conditions. This book presents images of radiological and radionucleotide scans, macroscopic and microscopic histopathology specimens, urodynamic traces and photographs of dermatological conditions relating to urology. Each section has a series of questions, often relating to a clinical scenario, about the images. A comprehensive answer provides a description of each image and of the condition shown. Details of how to interpret the image and the use of contrast or staining methods to help differentiate normal anatomy from pathology are included. Images in Urology is an essential tool for urology, radiology and histopathology trainees and consultants, as well as being an excellent exam preparation guide."

"This book is a comprehensive account of imaging of acute appendicitis and other appendiceal diseases. Background information is first provided on clinical presentation, perforation and negative appendectomy rates, and treatment options. The role of each imaging modality – radiography, ultrasound, CT, and MRI – is then considered separately in adults and children with suspected acute appendicitis. Many high-quality illustrations are included, and detailed information is provided on appropriate protocols and radiation saving. Further chapters addresses the spontaneously resolving and chronic appendicitis as well as other appendiceal lesions and review the findings of evidence-based medicine and cost-effectiveness analyses. Emergency physicians, pediatricians, surgeons, and radiologists will all find this book to be an excellent source of information and guidance."

"This book gathers a selection of peer-reviewed papers presented at the Tiangong-2 Data Utilization Conference, which was held in Beijing, China, in December 2018. As the first space laboratory in China, Tiangong-2 carries 3 new types of remote sensing payloads - the Wide-band Imaging Spectrometer (WIS), Three-dimensional Imaging Microwave Altimeter (TIMA), and Multi-band Ultraviolet Edge Imaging Spectrometer (MUEIS) - for observing the Earth. The spectrum of the WIS covers 18 bands, from visible to thermal infrared, with a swath of 300km. The TIMA is the first-ever system to use interferometric imaging radar altimeter (InIRA) technology to measure sea surface height and land topography at near-nadir angles with a wide swath. In turn, the MUEIS is the worlds first large-field atmospheric detector capable of quasi-synchronously detecting the characteristics of ultraviolet limb radiation in the middle atmosphere. The Earth observation data obtained by Tiangong-2 has attracted many research groups and been applied in such diverse areas as land resources, water resources, climate change, environmental monitoring, agriculture, forestry, ecology, oceanography, meteorology and so on. The main subjects considered in this proceedings volume include: payload design, data processing, data service and application. It also provides a comprehensive introduction to the research results gleaned by engineers, researchers and scientists throughout the lifecycle of the Tiangong-2 Earth observation data, which will improve the payload development and enhance remote sensing data applications."

"This book introduces medical imaging, its security requirements, and various security mechanisms using data hiding approaches. The book in particular provides medical data hiding techniques using various advanced image transforms and encryption methods. The book focuses on two types of data hiding techniques: steganography and watermarking for medical images. The authors show how these techniques are used for security and integrity verification of medical images and designed for various types of medical images such as grayscale image and color image. The implementation of techniques are done using discrete cosine transform (DCT), discrete wavelet transform (DWT), singular value decomposition (SVD), redundant DWT (RDWT), fast discrete curvelet transform (FDCuT), finite ridgelet transform (FRT) and non-subsampled contourlet transform (NSCT). The results of these techniques are also demonstrated after description of each technique. Finally, some future research directions are provided for security of medical images in telemedicine application."

"Laser Nd-YAG dengan energi 26 mj dan 53 mj, lebar pulsa 8ns di/Okla/can ke target (Cu) pada tekanan udara yang dikurangi. Peningkatan rasio sinyal latar belakang (S/B) dimungkinkan dengan kombinasi unik dari plasma yang dibatasi (confined plasma) dan teknik pencitraan (imaging technique). Dengan menggunakan teknik pencitraan, plasma primer (primary plasma) dan bagian tertentu dari plasma sekunder (secondary plasma) memberikan spektrum emisi yang kontinu dipisahkan dari bagian lain plasma sekunder. Dengan metode ini dapat diperoleh spektrum S/B yang tinggi meskipun menggunakan pengukuran waktu terintegrasi (time-integrated). Untuk menkonfirmasikan peran dari mekanisme gelombang kejut (shock-wave) dalam pembentukan plasma, titik fokus radiasi laser dimajukan 3 mm pada permakaan target dan ditemukan bahwa plasma sekunder melengkung ke bagian belakang target pada posisi yang berhubungan dengan area yang ditutupi ketika dilihat dari sisi plasma primer. Fenomena sangat mendukung eksistensi gelombang kejut."

"Refluks vesiko-ureter (RVU) adalah suatu keadaan berbaliknya urin dari kandung kemih kembali ke ureter dan secara potensial ke parenkim ginjal. RVU timbul dalam lima stadia menurut The International Reflux Study, masih terdapat perbedaan paham mengenai penanganan RVU berat (stadium IV dan V). Tujuan penelitian ini ialah untuk menilai laju filtrasi glomerulis (LFG) dengan pemeriksaan radionuklir DTPA pada anak dengan RVU pada berbagai stadia. Selama periods satu tahun (Agust.93-Agust.94) diteliti 21 anak dengan berbagai stadia RVU. Terdapat 14 anak laki-laki dan 7 perempuan dengan umur berkisar antara 2 jam sampai 15 tahun dan lama menderita RVU berkisar antara 5 hari sampai 8 tahun. Beberapa kesimpulan sementara dapat disebut disini ialah : 1. Penderita ISK simtomatis atau asimtomatis pada kasus RVU ditemukan 52.4%. 2. Kreatinin serum dan klirens kreatinin merupakan parameter yang baik untuk menilai fungsi ginjal yang abnormal pada RVU. 3. Terdapat hubungan bermakna antara berat RVU pada tiap ginjal dengan menurunnya LFG.

---

Visicoureteral reflux (VUR) is a condition in which urine regurgitates from the bladder back into the ureter and potentially to the renal parenchyma. VUR occurs in five degrees of severity according to the International Reflux Study. There remain some controversy concerning the management of severe VUR (stage IV and V). The purpose of this study is to evaluate the glomerular filtration rate (GFR) using the radionuclide DTPA examination in children with VUR of different stages. During a one year period (Aug.93 - Aug.94) 21 children with varying degrees of VUR were studied. Fourteen boys and 7 girls were encountered. The ages range from 2 hours till 15 years and the duration of the VUR were from 5 days up till 8 years.

Some preliminary conclusions could be taken from this study:

1. Patients with symptomatic or asymptomatic UTI reveal the presence of VUR in 52.4% of cases.

2. Serum creatinine and creatinine clearance are good parameters to evaluate the abnormal renal function in VUR,

3. There was a significant correlation between the degree of the VUR of each kidney and the degree of GFR reduction."

"Dental implants have become an accepted form of permanent tooth replacement. Successful dental implant treatment requires knowledge of the precise location in connection with critical structures in maxillae and mandible. Injury to the nerve canal or perforation of maxillary antrum can cause paresthesia or antral infection that may leads to failure of the treatment. Measuring the height and width of residual alveolar ridge is necessary to select the appropriately sized implant as well as to assure the adequacy of bone. Presurgical radiographic evaluation of dental implants plays very important role in the success of implant treatment procedure. Various imaging modalities from conventional intraoral radiographs to more sophisticated and modern ones can be used for this purpose. The conventional imaging modalities have very limitted diagnostic information in accordance with details and accurate in bone evaluation of the implants sites. On the other hand, modern imaging modalities such as Dental CT have been proven to produce excellent image either for measuring or detailed evaluating the sites. Selecting the appropriate imaging modality will be one of the key to success in dental implant treatment."

"Tujuan: Mengetahui bahwa indeks morfometrik USG merupakan metode yang baik dalam mendiagnosis keganasan ovarium tipe epitelial. Metode: Penelitian ini merupakan penelitian uji diagnostik yang dilakukan di Rumah Sakit Cipto Mangunkusumo dengan mengambil data retrospektif dari Januari 2016 hingga Desember 2017. Pasien poliklinik rawat jalan ginekologi dengan kecurigaan memiliki neoplasma ovarium kistik direkrut. Standar baku emas adalah temuan histologi dari massa adneksa yang dioperasi. Karakteristik gambaran pola morfometrik ultrasonografi meliputi bilateralitas, jumlah lokus, regularitas dinding dalam (inner wall), tonjolan papiler (papillary projection), bagian padat (solid part), asites, dan doppler blood flow.  Analisis ROC dilakukan untuk menentukan seberapa baik model ini digunakan sebagai metode diagnostik keganasan ovarium tipe epitelial. Analisis statistik dihitung, untuk mendapatkan nilai akurasi, sensitivitas, spesifisitas, nilai prediksi positif dan nilai prediksi negatif. Hasil: Penelitian ini melibatkan 178 pasien, sebanyak 101 kasus (56.74%) adalah k asusjinak dan 77 kasus (43.25%) adalah kasus ganas. Pola karakteristik USG, papillary projection (p-value = 0.000), solid part (p-value = 0.000), inner wall (p-value = 0.000), asites (p-value = 0.000) dan Doppler blood flow (p-value = 0.000) subjek penelitian memiliki hubungan yang bermakna dengan kejadian keganasan ovarium. Pola morfologi papillary projection memiliki nilai sensitifitas yang paling tinggi (83%), kemudian adanya asites (82%), dan iregularitas dinding (81%). Untuk kategori spesifisitas, didapatkan adanya bagian padat (solid part) memiliki nilai spesifisitas yang paling tinggi (93%).Analisis regresi multinomial digunakan untuk menilai gabungan pola karateristik yang bermakna untuk diagnostik keganasan ovarium tipe epitelial dengan AUC 89.40% (95%CI 84.70%-94.00%), Model ini akurat  secara statistik (p <0,05). Kesimpulan: Indeks morfometrik USG merupakan salah satu metode yang baik dalam memprediksi keganasan ovarium.

---

Objective: To know whether the ultrasound morphometric index is a good method to diagnose epithelial ovarian malignancy.

Materials and methods: This study is a diagnostic test conducted at Cipto Mangunkusumo Hospital, Jakarta, Indonesia. All data were taken retrospectively from January 2016 to December 2017. Gynecological outpatient polyclinic patients with suspicion of having cystic ovarian neoplasms were recruited. Characteristics of ultrasound morphometric patterns include bilaterality, number of loci, inner wall regularity, papillary projection, solid part, ascites, and doppler blood flow.

Results: The study involved 178 patients, 101 cases (56.74%) were malignant and 77 cases (43.25%) were malignant cases. The characteristics of ultrasound, papillary projection, solid part, inner wall, ascites and Doppler blood flow patterns of the study subjects had a significant relationship with the incidence of ovarian malignancy. Multinomial regression analysis was used to assess the combined characteristic patterns for the diagnostic epithelial type ovarian malignancy with AUC 89.40% (95% CI 84.70% -94.00%), this model was statistically accurate (p <0.05).

Conclusion: Morphometric index of ultrasound is a good methods in predicting epithelial ovarian malignancy "

"Sistem klasifikasi citra lidah telah banyak digunakan dalam kepentingan medis dan diagnosis kesehatan. Penelitian ini berfokus pada peningkatan peforma akurasi klasifikasi pada sistem prediksi perokok berdasarkan analisis letak persebaran Smoker Melanosis pada citra lidah. Teknik diagonis lidah yang dibangun adalah metode yang non-invasif serta berbasis pencitraan hiperspektral (HSI). Berbagai pendekatan dan arsitektur Deep Learning  telah diusulkan untuk mengatasi analisis data HSI dan telah mencapai akurasi klasifikasi yang relatif tinggi. Pada penelitian ini, arisitektur Convolutional Neural Network (CNN) dipakai dalam konfigurasi spektral-spasial yang terutama digunakan dengan tujuan ekstraksi fitur dan klasifikasi. Peneliti membuat beberapa arsitektur CNN untuk melakukan beberapa pengujian. Peneliti mengklasifikasikannya sebagai Single CNN dan Hybrid CNN. Pada algoritma Single CNN ada 2 arsitektur yang dibuat  yaitu CNN-Autoencoder dan CNN-Alexnet. Pada algoritma Hybrid CNN ada 2 arsitektur yang dibuat yaitu Proposed Hybrid CNN dengan satu cabang dan Hybrid CNN Resnet18 dengan 8 cabang. Peneliti menguji dampak kernel pada setiap subjek segmentasi yang berbeda dan terlihat bahwa akurasi klasifikasi tertinggi setiap subjek bervariasi terhadap ukuran kernel. Oleh karena itu, model Hybrid-CNN ini diusulkan untuk dapat membuat arsitektur hibrida dan skala konvolusi hibrida. Pada model Proposed Hybrid CNN yang diusulkan, akurasi pada subjek Lateral A bisa mencapai 90,6%, Lateral B mencapai 86,5%, dan Persepsi Dokter mencapai 99,2%. Pada model Hybrid CNN-Resnet18 yang diusulkan, Lateral A bisa mencapai 89,4%, Lateral B mencaapai 84,6%, dan Persepsi Dokter mencapai 97,4%. Secara umum hasil akurasi model yang diusulkan berhasil mencapai peforma yang lebih baik.

---

The tongue image classification system has been widely used in medical interests and health diagnosis. This research emphasizes on improving the performance of classification accuracy in the Smoker prediction system based on the location analysis of the SmokerMelanosis distribution on the tongue image. The tongue diagonalization technique developed is a non-invasive method based on hyperspectral imaging (HSI). Various considerations and architecture In-depth learning have been proposed to overcome the analysis of HSI data and has obtained relatively high classification completion. In this study, the Convolutional Neural Network (CNN) architecture is used in the spectral-spatial configuration used for feature extraction and classification. CNN to do some testing. Researchers classified it as Single CNN and Hybrid CNN. In the Single CNN algorithm, there are 2 architectures created, namely CNN-Autoencoder and CNNAlexnet. In the Hybrid CNN algorithm, there are 2 architectures created, namely Proposed Hybrid CNN with one branch and Hybrid CNN Resnet18 with 8 branches. Learn more about the kernel in each different subject segmentation and look at the kernel classification. Therefore, the Hybrid-CNN model is proposed to be able to make hybrid architecture and hybrid convolution scale. In the approved Proposed Hybrid CNN model, approved on the subject of Lateral A can reach 90,60%, Lateral B reaches 86,5%, and Doctor Perception reaches 99,2%. In the CNN-Resnet18 Hybrid model obtained, Lateral A can reach 89,4%, Lateral B reaches 84,6%, and Doctor Perception reaches 97,4%. In general, the results of the completion of the approved model have achieved better performance. "