Preparation of the essential oil of lemon grass was done in collaboration with the Chemical and Minerals Department of DOST. Properly washed and air dried mature leaves of lemon grass were used. Essential oil was extracted by means of hydrodistillation wherein the cut leaves were placed in a 4 liter erlenmeyer flask filled with tap water which was sealed and connected to a Clevenger tube for collection. This was then dried with anhydrous sodium sulfate (Na2SO4). The percentage oil yield of the sample was computed in terms of volume per weight percent. Moisture of free oils were stored in amber colored bottles at 4 degrees centigrade A 1.17 percent has been extracted through this process. The oil obtained was subjected to bioassay gas chromatography. The gas chromatogram found that Citral was the major component with a concentration of 69.39 percent. The physical properties of lemon grass essential oil in Table 1 Antifungal sensitivities were determined with tube dilution methods. The MIC for Fusarium solani was determined at 625 ug/ml and the MFC was at 700 ug/ml. The MIC of Aspergillus was at 500 ug/ml and MFC was at 570 ug/ml.
Animal ; ESSENTIAL OIL, CORNEA

PURPOSE: Accurate localization of the lumpectomy cavity during accelerated partial breast radiation (APBR) is essential for daily setup to ensure the prescribed dose encompasses the target and avoids unnecessary irradiation to surrounding normal tissues. Three-dimensional ultrasound (3D-US) allows direct visualization of the lumpectomy cavity without additional radiation exposure. The purpose of this study was to evaluate the feasibility of 3D-US in daily target localization for APBR.MATERIALS AND METHODS: Forty-seven patients with stage I breast cancer who underwent breast conserving surgery were treated with a 2-week course of APBR. Patients with visible lumpectomy cavities on high quality 3D-US images were included in this analysis. Prior to each treatment, X-ray and 3D-US images were acquired and compared to images from simulation to confirm accurate position and determine shifts. Volume change of the lumpectomy cavity was determined daily with 3D-US.RESULTS: A total of 118 images of each modality from 12 eligible patients were analyzed. The average change in cavity volume was 7.8% (range, -24.1% to 14.4%) on 3D-US from simulation to the end-of-treatment. Based on 3D-US, significantly larger shifts were necessary compared to portal films in all three dimensions: anterior/posterior (p = 7E-11), left/right (p = 0.002), and superior/inferior (p = 0.004).CONCLUSION: Given that the lumpectomy cavity is not directly visible via X-ray images, accurate positioning may not be fully achieved by X-ray images. Therefore, when the lumpectomy cavity is visible on US, 3D-US can be considered as an alternative to X-ray imaging during daily positioning for selected patients treated with APBR, thus avoiding additional exposure to ionizing radiation.
Breast Neoplasms ; Breast ; Humans ; Imaging, Three-Dimensional ; Mastectomy, Segmental ; Radiation Exposure ; Radiation, Ionizing ; Ultrasonography

The aim of the study is to evaluate the hemodynamic changes and the parenchymal perfusion associated with carotid cavernous fistulas before and after embolization using two-dimensional (2D) parenchymal blood flow analysis. A 15-year-old boy presented with 2-month history of progressive right eye proptosis, chemosis, and diplopia after a motor vehicle accident. Intracranial liquid embolization using Onyx-18 through the inferior petrosal approach was done with balloon protection at the opening of the fistula in the internal carotid artery, resulting in complete occlusion of the fistula. Parenchymal blood flow analysis was done before and immediately after embolization. 2D parametric parenchymal blood flow analysis is newly introduced software that can provide data cannot be conveyed by conventional digital subtraction angiography alone. The software allows for objective assessment of the arterial steal and the parenchymal perfusion both pre, and post-embolization. Pre-embolization assessment may influence the therapeutic decision, while post-embolization assessment can evaluate the treatment efficacy.
Adolescent ; Angiography, Digital Subtraction ; Carotid Artery, Internal ; Diplopia ; Embolization, Therapeutic ; Exophthalmos ; Fistula ; Hemodynamics ; Humans ; Male ; Motor Vehicles ; Perfusion ; Treatment Outcome