SAR Performance of Rectangular Microstrip Antenna for Breast Cancer Hyperthermia Treatment with Different Period of Treatment Procedure

Hassan, Magda; Lias, Kasumawati; Buniyamin, Norlida; Naimullah, Bibi Sarpinah Sheikh; Jobli, Ahmad Tirmizi

doi:10.1088/1742-6596/2071/1/012048

Cited by 5 publications

(6 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, in [8] [22], it presented different substrates have different effects on SAR distribution towards cancer tissues. Meanwhile, for different frequencies, it also provides differences in SAR distribution and FPD [19] .…”

Section: Resultsmentioning

confidence: 99%

“…Meanwhile, the inner depth is the measurement of cancer from the tip to the last point of cancer inside the breast phantom. Figure 1 shows the measurement of the depth [19]. A 100 mm diameter breast phantom and an 18 mm diameter of malignant tissues are developed using SEMCAD X 14.8.4 software simulator.…”

Section: Breast Phantom and Cancer Developmentmentioning

confidence: 99%

“…SAR is the absorption rate of heat by mass body tissues, and it is expressed in W/Kg or mW/g [16] [17]. SAR can be calculated using Equation 1 and Equation 2 [16] [18] [19].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

SAR Analysis Using Various Substrates of Microstrip Antenna for Breast Cancer Hyperthermia Treatment

Hassan,

Lias,

Buniyamin

et al. 2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Hyperthermia is an alternative technique used to treat breast cancer using high heat, around 41°C to 45°C, to denature cancer tissue into necrotic tissue. It can work independently or in adjuvant with other conventional methods. The design of an antenna with a suitable substrate is essential for the applicator to transmit maximal heat to the intended area and distribute the heat uniformly on the treated tissues. Therefore, the inset feed microstrip antenna is design with five different substrates, simulated, analyzed, and their performance is compared to get the best substrate. The substrates used include Rogers Duroid RT5880, Rogers RO4003, FR4, Alumina and Rogers RO3010. SEMCAD X 14.8.4 software is used to design, simulate and generate SAR. RT5880 and RO4003 show better SAR distribution and focus position distance (FPD), which can be further examined for future research. 2450 MHz, 915 MHz and 434 MHz frequencies are compared to find the most suitable frequency to apply with the applicator. A 915 MHz frequency shows better performance which can penetrate more toward the cancerous areas. However, there are several deficiencies such as difficulty in controlling FPD, wide unwanted hotspot and massive skin burn problem, that needs to be improved to provide less adverse health effects due to the execution of hyperthermia treatment. The selection of suitable substrates can help reduce the deficiencies and improve the effectiveness of the hyperthermia technique. The estimated period is within 2 hours to 3.6 hours to achieve sufficient heating to destroy the cancerous cells.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Breast Phantom and Cancer Developmentmentioning

confidence: 99%

See 1 more Smart Citation

SAR Analysis Using Various Substrates of Microstrip Antenna for Breast Cancer Hyperthermia Treatment

Hassan,

Lias,

Buniyamin

et al. 2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…The frequency band used for the biomedical antenna are Medical implant communication system (MICS) at (401–406) MHz and Industrial, scientific and medical (ISM) bands at 434 MHz, 915 MHz and 2450 MHz 11 , 12 , along with 902.8–928 MHz frequency band 13 . The Federal Communications Commission (FCC) recently revealed the wireless medical telemetry service (WMTS) band for frequencies between 608–614 MHz and 1.395–1.432 GHz 14 .…”

Section: Introductionmentioning

confidence: 99%

A sub 1 GHz ultra miniaturized folded dipole patch antenna for biomedical applications

Chishti

Aziz

Aljaloud

et al. 2023

Sci Rep

View full text Add to dashboard Cite

A miniaturized folded dipole patch antenna (FDPA) design for biomedical applications operating at sub 1 GHz (434 MHz) band is presented. Antenna is fabricated on FR-4 substrate material having dimensions of 16.40 mm $$\times$$ × 8.60 mm $$\times$$ × 1.52 mm (0.023$$\lambda$$ λ $$\times$$ × 0.012$$\lambda$$ λ $$\times$$ × 0.002$$\lambda$$ λ ). Indirect feed coupling is applied through two parallel strips at bottom layer of the substrate. The antenna size is reduced by 83% through lumped inductor placed at the center path of the radiating FDPA, suitable for biomedical (implantable) applications and hyperthermia. Moreover, Impedance matching is achieved without using any Balun transformer or any other complex matching network. The proposed antenna provides an impedance bandwidth of 6 MHz (431–437 MHz) below − 10 dB and a gain of − 31 dB at 434 MHz. The designed antenna is also placed on a human body model to evaluate its performance for hyperthermia through Specific Absorption Rate (SAR), Effective Field Size (EFS), and penetration depth (PD).

show abstract

“…Besides the above research on HTP, water bolus (WB) is another element in HTP that was proven to be able to reduce skin burn issues during the treatment [13], [14]. It is often used as a cooling material with the proposed HTP applicators [15], [16]. The implementation of WB in HTP was observed to improve the effective field size (EFS) of the EMF in the targeted tissue [17].…”

Section: Introductionmentioning

confidence: 99%

Heat distribution improvement with the implementation of polyethylene-covered water bolus into breast cancer hyperthermia

Wong,

Lias,

Basri

et al. 2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

This paper presents the implementation of polyethylene-covered water bolus into a non-invasive breast cancer hyperthermia applicator. This modified hyperthermia applicator is introduced to improve the performance of hyperthermia by reducing or removing unwanted hotspots during hyperthermia treatment. This simulation-based experiment is carried out to observe the heating distribution of hyperthermia with water bolus coated by three different thicknesses of polyethylene cover or layer, which are 0.5mm, 0.8mm and 1.0mm. The solvent used in the water bolus is distilled water. The 915MHz microstrip antenna as a hyperthermia applicator and stage 2 breast cancer with a cancer depth of 28.6 mm to 73.6 mm is selected for this study. Based on the results, with the modified HTP integrated by water bolus, the heat pattern of hyperthermia simulation becomes more concentrated into the targeted cancer region, and unwanted hotspots nearby the skin area of breast tissue are removed. The 0.5mm thick polyethylene cover showed the best results with a focusing region between 29.4mm to 69.4mm compared with the result of hyperthermia without implemented water bolus, which heated the 26.6mm to 67.3mm region.

show abstract

SAR Performance of Rectangular Microstrip Antenna for Breast Cancer Hyperthermia Treatment with Different Period of Treatment Procedure

Cited by 5 publications

References 8 publications

SAR Analysis Using Various Substrates of Microstrip Antenna for Breast Cancer Hyperthermia Treatment

SAR Analysis Using Various Substrates of Microstrip Antenna for Breast Cancer Hyperthermia Treatment

A sub 1 GHz ultra miniaturized folded dipole patch antenna for biomedical applications

Heat distribution improvement with the implementation of polyethylene-covered water bolus into breast cancer hyperthermia

Contact Info

Product

Resources

About