An Automated Size Recognition Technique for Acetabular Implant in Total Hip Replacement

Preoperative templating in Total Hip Replacement (THR) is a method to estimate the optimal size and position of the implant. Today, observational (manual) size recognition techniques are still used to find a suitable implant for the patient. Therefore, a digital and automated technique should be developed so that the implant size recognition process can be effectively implemented. For this purpose, we have introduced the new technique for acetabular implant size recognition in THR preoperative planning based on the diameter of acetabulum size. This technique enables the surgeon to recognise a digital acetabular implant size automatically. Ten randomly selected X-rays of unidentified patients were used to test the accuracy and utility of an automated implant size recognition technique. Based on the testing result, the new technique yielded very close results to those obtained by the observational method in nine studies (90%)

Computer aided preoperative planning application for shoulder hemiarthroplasty

This paper describes a proposed CAD graphics application that analyze digital radiography image for preoperative surgery in shoulder hemiarthroplasty.The purpose of designing this application is to aid orthopedic surgeon in preoperative planning phase before surgery, in terms of selecting suitable implant and manipulating the digital radiograph by using various facilities or tools available in the application. Therefore, digital templating and image processing play important roles in this research. Basically this application will support a few types of image file including jpg, gif, bmp and etc to be loaded. It will allow image enhancement and also enable measurement tools to be used by surgeon during the preoperative phase. A user will only need to do 5 simple steps in order to get the appropriate template and finally generate reports that he requires

Teknik pencarian maklumat dalam teknologi pengimejan perubatan

Bidang perubatan pada masa kini adalah satu contoh inovasi dalam bidang teknologi maklumat yang dapat memberi manfaat kepada doktor dan pesakit dan juga peralatan perubatan bagi mencegah penyakit. Antara contoh inovasi dalam bidang teknologi maklumat adalah seperti teknologi pengimejan perubatan, teknologi laser dan nanoteknologi. Teknologi pengimejan perubatan adalah penting kerana dapat membantu pakar perubatan menjalankan pemeriksaan ke atas pesakit.Format teknologi imej perubatan dikenali sebagai DICOM. Format DICOM adalah unik kerana bukan hanya mengandungi gambar pesakit, tetapi juga mengandungi maklumat yang berkaitan dengan pesakit. Makalah ini menunjukkan proses pembangunan perisian bagi mendapat maklumat daripada gambar sinar-x digital (DICOM). Perisian dibangun dengan mengguna Netbeans dan perpustakaan yang diguna ialah DICOM Standard perpustakaan. Perisian pencarian maklumat ini diuji dengan sejumlah data pesakit dan dibanding dengan kaedah pencarian maklumat mengguna pustaka pixelmed.Keputusan menunjukkan perisian dapat mencari maklumat yang terkandung dalam sinar-x pesakit dengan tepat

Chemical bath deposition of NiSe thin films from aqueous solutions.

The nickel selenide thin films were prepared onto microscope glass slides by a chemical bath deposition technique. The X-ray diffraction, scanning electron microscopy, and atomic force microscopy were used for their structural and morphological characterization. The X-ray diffraction results showed that the thin films prepared for longer deposition time and higher pH were polycrystalline with rhombohedral structure. The atomic force microscopy and scanning electron microscopy results indicated that the thin films covered the glass substrate completely and consisted of irregularly shaped grains. The optical properties of thin films were determined from analysis of the measured absorbance spectrum. The nickel selenide thin films exhibited direct band-gap transition with band gap energy of 1.8 eV

Chemical bath deposition of NiSe thin films from alkaline solutions using triethanoleamine as complexing agent

The nickel selenide thin films were prepared onto microscope glass slides by chemical bath deposition technique. The X-ray diffraction and scanning electron microscopy have been used for their structural and morphological characterization. The X-ray diffraction result shows that thin films have a polycrystalline and rhombohedral structure. The scanning electron microscopy micrograph shows the thin films cover the glass substrate completely and consisted of irregular shaped grains. The optical properties of thin films were determined from analysis of measured absorbance spectrum. The nickel selenide thin films exhibited direct band gap transition with band gap energy of 1.8 eV

Reka bentuk implan sendi pinggul dan penggunaannya dalam persekitaran digital (Design of hip joint implan and its use in digital environmental)

Bidang ortopedik pada masa kini menjadi semakin penting kerana bilangan pesakit yang menghidapi penyakit ‘osteoporosis’ meningkat setiap tahun. Cara pengecaman secara konvensional masih digunakan untuk mencari implan yang sesuai bagi pesakit. Oleh itu satu kaedah secara digital perlu dibangunkan supaya proses pengecaman saiz implan dapat dilaksanakan dengan berkesan. Kertas ini menunjukkan bagaimana implan sendi pinggul direka bentuk untuk digunakan dalam persekitaran digital. Templat implan yang digunakan secara manual oleh pihak PPUKM telah digunakan sebagai asas kepada reka bentuk implan sendi pinggul. Templat ini direka bentuk semula dengan menggunakan perisian AutoCad 2008. Templat yang dihasilkan dalam format AutoCAD ditukarkan ke format imej JPEG supaya ia boleh digunakan dalam perisian Photoshop untuk tujuan pewarnaan dan penskalaan. Implan digital ini kemudiannya telah diuji dengan menggunakan imej sinar-X pesakit yang disediakan oleh PPUKM. Keputusan menunjukkan implan sendi pinggul digital yang dihasilkan sangat sesuai dan boleh digunakan dalam persekitaran digital