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All Journal International Journal of Advances in Applied Sciences Reaktor BERKALA FISIKA SAINS DAN MATEMATIKA YOUNGSTER PHYSICS JOURNAL Edumatsains The Indonesian Biomedical Journal Journal of Physics and Its Applications Indonesian Journal of Electrical Engineering and Computer Science
Eko Hidayanto
Departemen Fisika, Fakultas Sains Dan Matematika Universitas Diponegoro Jl. Prof. Soedarto, SH, Tembalang, Semarang Telp./Fax. (024)74680822/(024) 74680822
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Earth & Planetary Sciences Education Energy Environmental Science Materials Science & Nanotechnology Mathematics Physics Public Health

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Automatic slice thickness measurement on computed tomography images of American College of Radiology phantom Anam, Choirul; Insiano, Dewi A.; Hidayanto, Eko; Naufal, Ariij; Maya, Annisa Tenri; Mulatomo, Tunggul Drajat; Ali, Mohd Hanafi
International Journal of Advances in Applied Sciences Vol 13, No 2: June 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v13.i2.pp371-379

Abstract

This study aims to develop an automatic method for calculating slice thickness on an American College of Radiology (ACR) phantom and evaluate its accuracy at variations of orientation angle and slice thickness. The phantom was scanned using Siemens SOMATOM perspective, with variations of the slice thickness (i.e. 1.5, 3, 5, 6, 7, and 10 mm) and rotation angles (i.e. 0.0, 22.5, 45.0, and 67.5°). The phantom rotation was based on the bone object as a reference. After determining the rotation angle, the phantom image was rotated by the angle. Next, profiles of pixel values across the wire objects for measuring slice thickness were developed from rotated phantom images. The slice thickness was measured automatically from the obtained profiles. The results of the automated method are 2.5, 4.1, 5.4, 5.8, 7.8, and 9.8 mm for all varied slice thicknesses. The differences between the automatic and manual methods are within 0.3 mm. The automatic method is capable of detecting slice thickness for various angles. The differences in slice thickness for various angles are within 0.1 mm for a slice thickness of 3 mm. These results are similar when compared to manual measurements. An algorithm for automated slice thickness measurement on ACR phantom has been successfully developed.
Carboxymethyl Cellulose-Stabilized Platinum Nanoparticles Synthesized by Pulsed Laser Ablation for Enhanced CT Scan Contrast Wahyuddin, Wahyuddin; Jonathan, Felix; Hidayanto, Eko; Khumaeni, Ali
Journal of Physics and Its Applications Vol 7, No 4 (2025): November 2025
Publisher : Diponegoro University Semarang Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpa.v7i4.29925

Abstract

This study demonstrates the performance of platinum nanoparticles (Pt NPs) as contrast agents for computed tomography (CT). Synthesized through pulsed laser ablation, Pt NPs were stabilized in carboxymethyl cellulose (CMC). In CT imaging evaluations, the CMC-stabilized Pt NPs generated significantly higher Hounsfield Unit (HU) values and contrast-to-noise ratio (CNR) than both their DIW-based counterparts and a conventional iodine-based agent. Remarkably, this enhanced contrast was achieved at substantially lower ppm concentrations, highlighting the potential of CMC-stabilized Pt NPs to offer a more efficient and powerful alternative to current clinical standards.
Co-Authors Abdul Rofiq Achmad Chalid Afif Afrio Rika. R Agus Joko Prasetyo Agus Romadhon Agus Subagio Ahmad Pradana Alfia Hanim Ali Khumaeni Ali, Mohd Hanafi Ana Aprilia Anugrah Rahma Ari Wiganti Ardian Handoko Ari Bawono P Ari Bawono Putranto Ariij Naufal Arisa Dwi Sakti Astri Suppa Supratman Bambang Haris Suhartono, Bambang Haris Budi Muhammad AR Candra Ancila Choirul Anam AM Diponegoro Diah Dwiana Lestari Duandini, Ega Elin Nuraini Elvira Rizqi Widyanti Erna Mariani Etika, Eva Anggun Evi Setiawati Galih Puspa Saraswati Galih Puspa Saraswati Gani Gunawan Gede Wiratma Jaya H Hadiyanto Hella Arofah Heri Sugito Heri Sutanto Hidayatullah Hidayatullah I. Istadi Idam Arif Iis Nurhasanah Indras Marhaendrajaya Insiano, Dewi A. Iva Nistiyanti Jhonwesly Manik Jonathan, Felix Josepa ND Simanjuntak Jun Kawai K Sofjan Firdausi Lamtiyah Ikha Indriyana M Rizqi Aditya Rahman Mariatul Khiftiyah Maya, Annisa Tenri Miftahul Aziz Mohammad Haekal Muahamad Irsal Much. Azam Muchammad Azam, Muchammad Muhammad Irwanto Muhammad Nur Muharam Budi Laksono, Muharam Budi Mulatomo, Tunggul Drajat Naufal, Ariij Nur Paramita Nira Mulyono Nurul Hikmantiyah Nurulita, Syaphira Faza Pandji Triadyaksa Poppy Intan Tjahaja Poppy Intan Tjahaja Puput Khusnaiatul Putri Parmitasari Putu Sukmabuana Qalby, Luthfia Rafli Filano Rahmawati Hidayah Rini Shintawati Salimatul Litasova Sanggam Ramantisan Sanggam Ramantisan Sanggam Ramantisan Santi Yuli Astuti Singgih Wibowo Sri Murni Susila Wardaya, Susila Takashi Yamamoto Teruo Tanabe Tiffany Rahma Novestiana Tina Melinda Tri Windarti Ukhti Lailun Nisa Very Richardina Wahyu Setia Budi Wahyu Tri Cahyanto Wahyuddin Wahyuddin Yoyon Wahyono Yoyon Wahyono Zaenal Arifin