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All Journal Indonesian Journal of Pharmaceutical Science and Technology Medicinus : Jurnal Kedokteran
Kartamihardja, Achmad Hussein Sundawa
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Computer Science & IT Medicine & Pharmacology Public Health

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The Appropriate Acquisition Time Interval Following Injection of 99mTc-Sestam ibi with Water Protocol in Single Photon Emission Computed Tomography Myocardial Perfusion Imaging: First Experience in Indonesia Prasetyo, Nora Anggun; Soeriadi, Erwin Affandi; Budiawan, Hendra; Kartamihardja, Achmad Hussein Sundawa
Medicinus Vol 12, No 1 (2022): October
Publisher : Fakultas Kedokteran Universitas Pelita Harapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19166/med.v10i2.7016

Abstract

Introduction: According to EANM/ESC guideline, image acquisitions in stress test should be begun at 30-60 minutes after tracer administration. Our center is a referral hospital for nuclear medicine imaging with many patients but limited number of gamma camera. The shorter time between injection of radiopharmaceutical and imaging acquisition will add to the number of examinations that can be performed. The aim of this study was to evaluate the appropriate acquisition time interval with water protocol in 99mTc-Sestamibi SPECT myocardial perfusion imaging.Methods: Patients who were referred to undergo stress MPI between October 2020 to December 2020 were included in this study. Cardiac stress procedure was performed using treadmill with modified Bruce Protocol. Subjects drank a total of 330 mL water following 99mTc-Sestamibi injection. Image acquisitions were performed 10 and 30 minutes afterwards. Quantitative assessment was done by calculating target background ratio (TBR). Statistical analysis was performed using student t-test with Microsoft Excel version 2019. P-value < 0.05 was considered to be statistically significant.Result: Thirty out of 35 subjects were included in this study. Sixteen of them are male and 14 are female with a mean age of 48.7 years old (28 – 80). Mean target background uptake ratio (TBR) in 10- and 30-minutes images were 0.67 (0.44 – 1.11) and 0.76 (0.43 – 1.18) respectively (p-value = 0.15).Conclusion: There was no significant difference of target to background ratio between 10- and 30-minutes acquisition time interval following injection of 99mTc- Sestamibi with water protocol in myocardial perfusion imaging.
Studi In Silico Senyawa 5-BOTP dan ADPB sebagai Senyawa Pembawa Radioteranostik terhadap LAT-1 Holik, Holis Abdul; Elaine, Angela Alysia; Sitinjak, Bernap Dwi Putra; Qolbina, Shofura Marsa; Ibrahim, Faisal Maulana; Achmad, Arifudin; Sudarmanto, B.S. Ari; Kartamihardja, Achmad Hussein Sundawa
Indonesian Journal of Pharmaceutical Science and Technology Vol 11, No 3 (2024)
Publisher : Indonesian Journal of Pharmaceutical Science and Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/ijpst.v11i3.55077

Abstract

Kompleksitas patogenesis kanker membuat kanker sulit untuk menemukan target terapi yang tepat, sehingga tingkat keberhasilan obat baru dalam uji klinis rendah. Oleh karena itu, studi pengembangan teknik intervensi yang baru untuk pasien kanker sangat penting. Large-type Amino Acid Transporter 1 (LAT-1) diekspresikan secara berlebihan dalam sel kanker jika dibandingkan dengan sel normal, hal ini menjadikannya salah satu target molekuler khusus untuk terapi kanker. Fungsi LAT-1 adalah memberikan nutrisi pada sel kanker untuk berkembang biak secara masif sehingga penghambatan LAT-1 dapat dijadikan alternatif terapi kanker. Penelitian ini bertujuan untuk mendapatkan senyawa potensial yang akan digunakan untuk radioteranostik dengan dua senyawa inhibitor LAT-1 sebagai senyawa pembawa, yaitu 5-Benzyloxytryptophan (5-BOTP) dan asam (S)-2-amino-4-(3,5-diklorofenil) butanoat (ADPB) yang dikonjugasikan dengan senyawa linker dan berbagai agen pengkelat bifungsional (BFCA) terhadap situs antiporter LAT-1. Metode penelitian terdiri dari mode pengikatan senyawa 5-BOTP dan ADPB terkonjugasi dengan LAT-1, simulasi penambatan molekuler, dan analis pre-ADMET. Hasil penelitian menunjukkan bahwa 5-BOTP-6AHA-H2CB-DO2A dan ADPB-6AHA-H2CB-DO2A memiliki afinitas terbaik dan kompleks pengikatan yang terbaik dengan LAT-1 sehingga keduanya berpotensi sebagai agen radioteranostik kanker dengan menghambat LAT-1.Kata kunci: Kanker, radioteranostik, LAT-1, 5-Benzyloxytryptophan, asam (S)-2-amino-4-(3,5-diklorofenol) butanoat.
The Appropriate Acquisition Time Interval Following Injection of 99mTc-Sestam ibi with Water Protocol in Single Photon Emission Computed Tomography Myocardial Perfusion Imaging: First Experience in Indonesia Prasetyo, Nora Anggun; Soeriadi, Erwin Affandi; Budiawan, Hendra; Kartamihardja, Achmad Hussein Sundawa
Medicinus Vol. 12 No. 1 (2022): October
Publisher : Fakultas Kedokteran Universitas Pelita Harapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19166/med.v10i2.7016

Abstract

Introduction: According to EANM/ESC guideline, image acquisitions in stress test should be begun at 30-60 minutes after tracer administration. Our center is a referral hospital for nuclear medicine imaging with many patients but limited number of gamma camera. The shorter time between injection of radiopharmaceutical and imaging acquisition will add to the number of examinations that can be performed. The aim of this study was to evaluate the appropriate acquisition time interval with water protocol in 99mTc-Sestamibi SPECT myocardial perfusion imaging.Methods: Patients who were referred to undergo stress MPI between October 2020 to December 2020 were included in this study. Cardiac stress procedure was performed using treadmill with modified Bruce Protocol. Subjects drank a total of 330 mL water following 99mTc-Sestamibi injection. Image acquisitions were performed 10 and 30 minutes afterwards. Quantitative assessment was done by calculating target background ratio (TBR). Statistical analysis was performed using student t-test with Microsoft Excel version 2019. P-value < 0.05 was considered to be statistically significant.Result: Thirty out of 35 subjects were included in this study. Sixteen of them are male and 14 are female with a mean age of 48.7 years old (28 - 80). Mean target background uptake ratio (TBR) in 10- and 30-minutes images were 0.67 (0.44 - 1.11) and 0.76 (0.43 - 1.18) respectively (p-value = 0.15).Conclusion: There was no significant difference of target to background ratio between 10- and 30-minutes acquisition time interval following injection of 99mTc- Sestamibi with water protocol in myocardial perfusion imaging.
Co-Authors Achmad, Arifudin Elaine, Angela Alysia Hendra Budiawan, Hendra Holis Abdul Holik, Holis Abdul Ibrahim, Faisal Maulana Prasetyo, Nora Anggun Qolbina, Shofura Marsa Sitinjak, Bernap Dwi Putra Soeriadi, Erwin Affandi Sudarmanto, B.S. Ari