Basari BasariUniversity of Indonesia | UI · Biomedical Engineering - Department of Electrical Engineering
Basari Basari
Doctor of Philosophy
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106
Publications
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424
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Introduction
Additional affiliations
September 2011 - present
April 2008 - March 2011
Publications
Publications (106)
ABSTRAKGagal napas terjadi ketika sistem pernapasan tidak mampu mempertahankan kadar oksigen yang memadai dalam darah, baik dengan atau tanpa akumulasi karbon dioksida. Ventilator adalah alat yang mendukung pernapasan seseorang yang mengalami gagal napas. Pengaturan ritme pernapasan oleh mesin sering kali dirasakan tidak nyaman oleh pasien yang sad...
Human body tissue disease diagnosis will become more accurate if transmittance images, such as X-ray images, are separated according to each constituent tissue. This research proposes a new image decomposition technique based on the matrix inverse method for biological tissue images. The fundamental idea of this research is based on the fact that w...
Biometric recognition techniques have become more developed recently, especially in security and attendance systems. Biometrics are features attached to the human body that are considered safer and more reliable since they are difficult to imitate or lose. One of the popular biometrics considered in research is palm veins. They are an intrinsic bio...
The microwave imaging system for breast tumor/cancer detection requires high sensitivity to detect abnormal tissue that has little contrast in high-density breasts. This paper proposes a qualitative microwave imaging system simulation based on inverse scattering using the sensitivity-maps method. This method utilizes two measurement types for syste...
Teknologi terkini sudah sangat memajukan kehidupan manusia, yaitu untuk membantu pekerjaan manusia agar lebih mudah, salah satunya yaitu teknologi untuk mengidentifikasi sel pada Bioimaging. Bioimaging sendiri digunakan untuk para dokter sel atau patologi. Dalam hal ini teknologi software yang digunakan yaitu Visualisasi Bioimaging, hal ini akan me...
Sudden infant death syndrome atau SIDS adalah kematian mendadak pada bayi sehat berusia di bawah 1 tahun yang terjadi secara tidak terduga dimana faktor risiko SIDS yang diidentifikasi dalam studi epidemiologi adalah posisi tengkurap dan miring untuk tidur bayi, paparan asap, alas tidur dan permukaan tidur yang empuk dan suhu ruangan terlalu dingin...
Wearable sensors are devices used in the diagnostic process for real-time health monitoring systems. Types of sensors are generally based on physical sensors and chemical sensors. However, the types of wearable sensors that are largely commercialized are limited to physical sensors. Some diagnostic processes generally use the blood collecting metho...
This study proposes a new method in an electroencephalograph (EEG)-based Brain-Computer Interface (BCI) that can directly utilize brain signals to control external devices. The motor Imagery (MI) signal, which contains an image of a certain limb movement, is generally used in BCI. It does not need direct movements. The implementation of MI-EEG sign...
A ventilator is a breathing support device that serves as a therapeutic tool or treatment tool for patients with respiratory system failure caused by various health problems or diseases. On ventilators, there are crucial parameters that need to be monitored in advance, such as inspiration–expiration (I:E) ratio, respiration rate, tidal volume, peak...
Nuclear medicine is a medical science that utilizes radionuclide with gamma ray radiation energy to ionizing the patient’s object either aimed for diagnostic imaging or cancer therapy. Total number of nuclear medicine facilities in Indonesia is 17 hospitals. Unfortunately, there are only 10 hospitals that actively carrying out nuclear medicine serv...
COVID-19 contact tracing is a preventive solution to slow the spread of the virus. Several countries have implemented manual contact tracing as well as digital tracking using smartphone applications. A proximity-based COVID- 19 contact tracing system device using BLE (Bluetooth Low Energy) technology focuses on tracking and controlling the spread o...
Morphological assessment of blastocyst quality is one of the most significant challenges in the IVF process because the current assessment is based on evaluation by an embryologist; thus, it is still manual and subjective and lacks precision. Artificial intelligence (AI) plays a role in overcoming the limitations of the manual assessment system, an...
COVENT-Tester (COVID-19 VENTilator Tester) is a low-cost and open source ventilator tester developed to calibrate the output of medical ventilators, including tidal volume, inspiratory pressure, and oxygen concentration. Currently, there are several open-source ventilator testers, however, existing open-source ventilator testers are unable to measu...
Children with Special need education-Cerebral palsy (CSN-CP) based The Indonesian Ministry of Education and Culture in 2019, predicted that 70% of CSN had not been served. The extent of the Republic of Indonesia and pandemic COVID-19 nowadays and the Government’s policy of learning from home to remain fulfilled by children’s rights and maintain the...
Cancer
is one of the leading causes of death, and the brain is one of the body’s
cancer-prone organs. The early detection
of brain tumors can reduce cancer risk, which is practically assisted and
conducted using scanners such as computed tomography (CT) and magnetic
resonance imaging (MRI). However, those modalities are high-cost and
large-sized, a...
Embryo culture and transfer are the procedure of maturation and transmission of the embryo into the uterus. This procedure is one of a stage in the series of in vitro fertilization processes, better known as IVF. The selection of good quality embryos to be implanted presents a problem because of the blastocyst image. Blastocyst image is a very intr...
Detecting cholesterol levels with iridology can be an alternative method for checking human’s health. Iridology analyzes diseases and weaknesses of the body based on the shape and structure of the iris. This study uses image processing to analyze patterns in the outer portion of the iris bordering the sclera. Colored iris images are converted to gr...
In this research, a bionic prosthetic hand model is designed and built according to the limitations of the human hand, the model is then controlled using a computer algorithm written in MATLAB™ and embedded with Arduino Uno™ based controller. We conduct simulation model by developing algorithm for commanding the system to follow a few arm movement...
There are many medical equipments being used by human as assistance to check some organs inside the body. The medical modalities are developed to obtain the most effective and efficient in terms of quality and cost. Research about infrared spectrum as the medical equipment is a highlight among scientists since it can be captured the blood vessel of...
Nuclear medicine is one of medical fields that uses ionizing radiation sources for therapeutic and diagnostic imaging for cancer. The number of nuclear medicine services in Indonesia is 17 hospitals, which only 10 is active in conducting nuclear medicine services because it doesn’t meet the requirements. Regulations about the standards of nuclear m...
Myoelectric pattern recognition has shown promise in the control of the prosthetic arm. But interfering noise and motion artifacts have hindered this kind of method to be used outside a controlled environment. This paper has designed an optimized circuit to process the Electromyography (EMG) signal. EMG signal is acquired from surface skin using sE...
Tuberculosis (TB) is one of the most common diseases in developing countries such as Indonesia. TB disease oftenly attacks the human lungs due to its high oxygen pressure. The basic characteristics of TB-infected lungs are in the form of wounds, which change its texture and shape. The common detection method is by comparing the X-ray thoracic image...
Hypertensive Retinopathy (HTR) is a disease caused by high blood pressure flowing into the retinal blood vessels, resulting in thickening of blood vessel walls and reducing blood flow in the retina. Complications arising from this disease are diverse and dangerous, ranging from retinal vein occlusion, eye nerve damage, even blindness. This paper pr...
Victims of acute cancer and tumor are growing each year and cancer becomes one of the causes of human deaths in the world. Cancers or tumor tissue cells are cells that grow abnormally and turn to take over and damage the surrounding tissues. At the beginning, cancers or tumors do not have definite symptoms in its early stages, and can even attack t...
Cardiovascular disease has been one of the leading causes of sudden cardiac deaths in many countries, covering Indonesia. Electrocardiogram (ECG) is a medical test to detect cardiac abnormalities by measuring the electrical activity generated by the heart, as the heart contracts. By using ECG, we can observe anomaly at the time of heart abnormaliti...
The development of advanced technology leads to the change of human lifestyle in current society. One of the disadvantage impact is arising the degenerative diseases such as cancers and tumors, not just common infectious diseases. Every year, victims of cancers and tumors grow significantly leading to one of the death causes in the world. In early...
Currently, cancer has become one of health problems that is difficult to be overcomed. This disease is not only difficult to be cured, but also to be detected and may cause death. For this reason, RF ablation treatment method is proposed to cure cancer.RF ablation therapy is a method in which an applicator is inserted into the body to kill cancer c...
Electrocardiogram (ECG) devices measure electrical activity of the heartmuscle to determine heart conditions. ECG signal quality is the key factor in determining the diseases of the heart. This paper presents the design of 3-lead acquistion on single channel wireless ECG device developed on AD8232 chip platform using microcontroller. To make the sy...
This study discusses the influence of WBA (wide band amplifier) supply against the performance of consistency level of multi-spectral fluctuation pattern, which is the output of the MCS (Multi Frequency Capacitive Sensor). In order to obtain some significant impacts on the sensor output, there are several methods that are employed in this study. Fi...
This paper provides a dual-arm modified-spiral magnetic-type textile antenna for wireless medical communication applications. The proposed antenna is constructed of a woven fabric substrate and a copper patch on the substrate aiming at 2.45 GHz band operation. The antenna is simulated and measured with and without human body phantom. The antenna sh...
Cancer is one of the leading cause of death worldwide, and an early detected cancer is likely to get better treatment. Widely used modalities for scanning the presence of cancer such as Computed Tomography and Magnetic Resonance Imaging still have problems related to the cost, size and equipment complexity. Microwave imaging is considered as an alt...
Wearable technology application has become one of the important part in the development of Body Centric Wireless Communications Systems (BWCS). Wearable antenna is an important device aimed at those applications in particular for medical purposes, safety purposes, and so on. However, most of the antenna design is still focused on the electrical typ...
A microwave imaging system for scanning the presence of cancer in the body is designed. The system uses a pair of dipole antennas as a transmitter and a receiver at frequency of 3 GHz based on Algebraic Reconstruction Tecnique (ART) algorithm. Two types of numerical phantom are used for validating the image reconstruction system, a cylindrical phan...
Antenna can be one of the largest components in a wireless device; therefore antenna miniaturization can reduce the overall size of wireless devices. One method used to reduce the element size of an antenna is by using metamaterial structures. This paper discusses a Left-Handed Metamaterial (LHM) structure stacked on a two-element microstrip antenn...
This paper presents a 4x4 Butler matrix as a beamforming network that is combined with a 4-elements linear aperture coupled antenna arrays to produce four narrow steerable beams. The designed array is aimed to obtain a operating frequency at 2350 MHz for LTE applications by using the Advance Design System (ADS) and CST Microwave Studio. The measure...
Channel modeling is the starting point of effective, efficient body-centric communications. Specifically, path loss prediction plays an important role in estimation of received signal strength, interference optimization and analysis, link budget design and analysis, and cell size estimation. Path loss models are classified as deterministic, empiric...
This paper proposes a dual-band left-handed circularly polarized triangular-patch array that is developed for land vehicle mobile system aimed at mobile satellite communications. The array consists of six tip-truncated triangular patches, which the first three patches are used for reception and the second three patches are used for transmission
pur...
This paper presents a high efficiency 2.44-GHz rectifier that can harvest low input RF power effectively. A new rectifier with a simple structure is proposed for the rectenna application. The proposed single-band rectifier has been implemented and the measurements show good agreement with simulation. With an input matching network, the measurement...
This paper demonstrate a simple, high gain and low sidelobe level microstrip array antenna for x-band radar application. The antenna is designed for 1×6 element as a subarray and 6×32 element as a full array with appropriate feeding system. The simulation results showed that the designed antenna has an excellent radiation characteristics.
A constant and continous health monitoring performed in real time is one of the main parameter to achieve success in healing process of clinical patient. Yet, here are still many obstacles such as quality degradation of reading transfer using electrical signals by conductive electrodes due to biological constraint. Namely, irritation to the skin is...
Receiver radio frequency coil (RF coil) is one of the important components in MRI system, which it operates by receiving RF signal that emitted from the excited body part. In this paper, a novel design of dual resonant RF phased array coil for MRI 3T and 7T system is proposed. Phased array is chosen due to its advantages for parallel imaging, high...
Currently, many researchers have been concerning with body-centric wireless communications systems (BWCS) since their numerous medical applications including in combination with low rate wireless personal area (LR-WPAN) technology for human physiological monitoring system. This paper proposes a novel wearable antenna that operates at 2.45 GHz for o...
We are developing a microwave imaging system that is affordable, easy to operate (portable), non-ionization (safe radiation) and non-invasive. In this paper, a microwave imaging system using UWB printed dipole-like antenna based on back-projection algorithm is proposed at frequency of 5.8 GHz aimed at tumor imaging system in order to obtain a recon...
Many wireless devices in common use today are worn either on or in close proximity to the body. Those devices are designed for applications such as activity or vital-signs monitoring, typically using Bluetooth/Zigbee technology to communicate with external devices under body-centric wireless communications system (BWCS). In addition, currently, mic...
This paper proposes a RF Birdcage Coil resonator without lumped elements. The RF Birdcage Coil resonator is designed without using lumped elements, which is able to resonate at 128 MHz for non-invasively 3T Magnetic Resonance Imaging (MRI) system. This resonator has the Leg and End Rings (ERs), which are composed from copper sheets and then they ar...
Brain tumor is one of degenerative diseases that have been concerned by doctors and researcher to be investigated. MRI, PET, or CT is widely used modalities for brain tumor scanning, which it can provide accurate and high resolution image. However, it costs still relatively high particularly in developing countries with high population like Indones...
Magnetic Resonance Imaging (MRI) is one of well-known imaging modalities because it is noninvasive, does not produce ionization and offers various contrast mechanisms for all kinds of tissues, especially soft tissues. Faster image acquisition is indispensable in current imaging technology, especially for dynamic object. Parallel MRI (pMRI) offers s...
This paper proposes a compact, circularly polarized (CP), tip-truncated, triangular patch array developed for a land vehicle mobile system for mobile satellite communications. The array is constructed by three patches so that its beam pattern can be switched in three 120°-coverage beams in the azimuth plane with minimum gain requirement at a fixed...
Recent wireless technologies in particular the RFID technology has been stimulating significant interest in several applications including in healthcare industries owing to their benefits to human being. The RFID offers a better identification system compared to a barcode scanning system due to its simple contact method to the receiver, its storage...
In this paper, a four element coplanar waveguide fed monopole antenna which is arrayed as volume array antenna to obtain omnidirectional pattern is presented. This femtocell antenna is designed to work at frequency 2.3-2.5 GHz for VSWR <2 and have at least 100 MHz impedance bandwidth. This array antenna has low mutual coupling, 460 MHz bandwidth at...
This paper discusses an active integrated microstrip antenna with multiple input and multiple output (MIMO) 2×2 element design. The active component as power amplifier is integrated with the rectangular patch antenna for gain enhancement at port 2 and port 4. The feeding technique used is aperture coupled to easily integrate the passive antenna wit...
Currently, most of implanted medical devices are using inductive coupling for communication, which leads to difficulty in transmitting medical data records for several meters range. In order for the implanted device is able to be used in longer range transmission, the device is wirelessly transmitted in the form of electromagnetic signals. This ini...
A four-way unequal power divider is developed to feed a linear array proximity coupled microstrip antenna. The unequal power divider excitation coefficients follow the chebyshev polynomial. The simulation result shows that the four element proximity coupled microstrip antenna array with unequal power divider has achieved a sidelobe level suppressio...
Radio Frequency Identification (RFID) is one of the developed technologies, which is used in several applications, including for medical field applications. For patient monitoring purpose, the RFID system is consisted of a medical tag that is implanted into the human body and a reader unit that is installed away from the human either in proximity o...
This paper present a circularly polarized microstrip antenna array for Unmanned Aerial Vehicle (UAV). The antenna element is designed using conventional rectangular microstrip antenna which is electromagnetically coupled fed by a microstrip line. The 1×4 element microstrip antenna array is then assembled on the surface of UAV cylindrical fuselage....
Nowadays, implanted medical devices that are using inductive coupling for communication, cannot be used for transmitting medical data in several meters range. This triggers us to study about implantable device systems in order for communications is enabled to be longer range by transmitting wirelessly electromagnetic signal. In this system, the ext...
This paper proposes a simple helical dipole antenna for implanted bioinformatic applications in patient remote monitoring. The antenna is quite small enough in UHF band with good performances in terms of S parameter, input impedance, bandwidth, radiation pattern and gain. The antenna has a gain for 10 m short range communication with 13MHz bandwidt...
This paper presents a field measurement of a simple antenna system mounted on a vehicle by utilizing a geostationary test satellite called Engineering Test Satellite VIII (ETS-VIII). Our developed antenna system is compact, lightweight, and promising for low-cost production. The antenna system is constructed by a 16-cm patch array antenna, which ha...
Simple selectable-beam antenna system for vehicle-mounted mobile satellite communication applications was presented. We have discussed it from design, laboratory test as well as outdoor test and verification in measurement campaign. System components discussed include array antenna includes its switching system to activate the array, and satellitet...
This paper provided a measurement campaign of simple antenna system mounted on a vehicle by utilising a Japanese geostationary test satellite called Engineering Test Satellite VIII (ETS-VIII). We developed an antenna system that was compact, light weight, and promising in low cost production. The antenna system was built by a 16-cm patch array ante...
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