Attenuation Correction for Dedicated Cardiac Spect Imaging Without Using Transmission Data; [Transmisyon Verilerini Kullanmadan Ozel Kardiyak Spect Goruntulemede Atenuasyon Duzeltmesi]

Attenuation Correction for Dedicated Cardiac Spect Imaging Without Using Transmission Data; [Transmisyon Verilerini Kullanmadan Ozel Kardiyak Spect Goruntulemede Atenuasyon Duzeltmesi] Publisher

Tadesse GF^{1, 2, 3} ; Geramifar P⁴ ; Abbasi M⁵ ; Tsegaw EM⁶ ; Amin M⁷ ; Salimi A² ; Mohammadi M² ; Teimourianfard B⁸ ; Ay MR^{1, 2}

Show Affiliations

1. Research Center for Molecular and Cellular Imaging (RCMCI), Advanced Medical Technologies and Equipment Institute (AMTEI), Tehran University of Medical Sciences (TUMS), Tehran, Iran
2. Department of Medical Physics and Biomedical Engineering, Tehran University of Medical Sciences, Tehran, Iran
3. St. Paulâ€™s Hospital Millennium Medical College, Department of Internal Medicine, Addis Ababa, Ethiopia
4. Tehran University of Medical Sciences, Shariati Hospital, Research Center for Nuclear Medicine, Tehran, Iran
5. Tehran University of Medical Sciences, Department of Nuclear Medicine, Vali-Asr Hospital, Tehran, Iran
6. Debre Tabor University, Faculty of Natural and Computational Sciences, Department of Physics, Debre Tabor, Ethiopia
7. Shahed University, Faculty of Science, Department of Computer Science, Tehran, Iran
8. Tehran University of Medical Sciences, Postdoctoral Research Fellow, Tehran, Iran

Source: Molecular Imaging and Radionuclide Therapy Published:2023

Abstract

Objectives: Attenuation correction (AC) using transmission scanning-like computed tomography (CT) is the standard method to increase the accuracy of cardiac single-photon emission computed tomography (SPECT) images. Recently developed dedicated cardiac SPECT do not support CT, and thus, scans on these systems are vulnerable to attenuation artifacts. This study presented a new method for generating an attenuation map directly from emission data by segmentation of precisely non-rigid registration extended cardiac-torso (XCAT)-digital phantom with cardiac SPECT images. Methods: In-house developed non-rigid registration algorithm automatically aligns the XCAT-phantom with cardiac SPECT image to precisely segment the contour of organs. Pre-defined attenuation coefficients for given photon energies were assigned to generate attenuation maps. The CT-based attenuation maps were used for validation with which cardiac SPECT/CT data of 38 patients were included. Segmental myocardial counts of a 17-segment model from these databases were compared based on the basis of the paired t-test. Results: The mean, and standard deviation of the mean square error and structural similarity index measure of the female stress phase between the proposed attenuation maps and the CT attenuation maps were 6.99±1.23% and 92±2.0%, of the male stress were 6.87±3.8% and 96±1.0%. Proposed attenuation correction and computed tomography based attenuation correction average myocardial perfusion count was significantly higher than that in non-AC in the mid-inferior, mid-lateral, basal-inferior, and lateral regions (p<0.001). Conclusion: The proposed attenuation maps showed good agreement with the CT-based attenuation map. Therefore, it is feasible to enable AC for a dedicated cardiac SPECT or SPECT standalone scanners. © 2023 by Turkish Society of Nuclear Medicine Molecular Imaging and Radionuclide Therapy published by Galenos Yayinevi.

2. Implementation of Absolute Quantification in Small-Animal Spect Imaging: Phantom and Animal Studies, Journal of Applied Clinical Medical Physics (2017)

3. Evaluation of the Organs at Risk Doses for Lung Tumors in Gated and Conventional Radiotherapy, Journal of Cancer Research and Therapeutics (2020)

4. List-Mode Quantitative Joint Reconstruction of Activity and Attenuation Maps in Time-Of-Flight Pet, Journal of Instrumentation (2023)

5. Evaluation of Normal Lung Tissue Complication Probability in Gated and Conventional Radiotherapy Using the 4D Xcat Digital Phantom, Computers in Biology and Medicine (2018)

Experts (# of related papers)

Mohammad Reza Ay (2)

Parham Geramifar (1)

Style	Citing Format
MLA	Tadesse GF, et al.. "Attenuation Correction for Dedicated Cardiac Spect Imaging Without Using Transmission Data; [Transmisyon Verilerini Kullanmadan Ozel Kardiyak Spect Goruntulemede Atenuasyon Duzeltmesi]." Molecular Imaging and Radionuclide Therapy, vol. 32, no. 1, 2023, pp. 42-53.
APA	Tadesse GF, Geramifar P, Abbasi M, Tsegaw EM, Amin M, Salimi A, Mohammadi M, Teimourianfard B, Ay MR (2023). Attenuation Correction for Dedicated Cardiac Spect Imaging Without Using Transmission Data; [Transmisyon Verilerini Kullanmadan Ozel Kardiyak Spect Goruntulemede Atenuasyon Duzeltmesi]. Molecular Imaging and Radionuclide Therapy, 32(1), 42-53.
Chicago	Tadesse GF, Geramifar P, Abbasi M, Tsegaw EM, Amin M, Salimi A, Mohammadi M, Teimourianfard B, Ay MR. "Attenuation Correction for Dedicated Cardiac Spect Imaging Without Using Transmission Data; [Transmisyon Verilerini Kullanmadan Ozel Kardiyak Spect Goruntulemede Atenuasyon Duzeltmesi]." Molecular Imaging and Radionuclide Therapy 32, no. 1 (2023): 42-53.
Harvard	Tadesse GF et al. (2023) 'Attenuation Correction for Dedicated Cardiac Spect Imaging Without Using Transmission Data; [Transmisyon Verilerini Kullanmadan Ozel Kardiyak Spect Goruntulemede Atenuasyon Duzeltmesi]', Molecular Imaging and Radionuclide Therapy, 32(1), pp. 42-53.
Vancouver	Tadesse GF, Geramifar P, Abbasi M, Tsegaw EM, Amin M, Salimi A, et al.. Attenuation Correction for Dedicated Cardiac Spect Imaging Without Using Transmission Data; [Transmisyon Verilerini Kullanmadan Ozel Kardiyak Spect Goruntulemede Atenuasyon Duzeltmesi]. Molecular Imaging and Radionuclide Therapy. 2023;32(1):42-53.
BibTex	@article{ author = {Tadesse GF and Geramifar P and Abbasi M and Tsegaw EM and Amin M and Salimi A and Mohammadi M and Teimourianfard B and Ay MR}, title = {Attenuation Correction for Dedicated Cardiac Spect Imaging Without Using Transmission Data; [Transmisyon Verilerini Kullanmadan Ozel Kardiyak Spect Goruntulemede Atenuasyon Duzeltmesi]}, journal = {Molecular Imaging and Radionuclide Therapy}, volume = {32}, number = {1}, pages = {42-53}, year = {2023} }
RIS	TY - JOUR AU - Tadesse GF AU - Geramifar P AU - Abbasi M AU - Tsegaw EM AU - Amin M AU - Salimi A AU - Mohammadi M AU - Teimourianfard B AU - Ay MR TI - Attenuation Correction for Dedicated Cardiac Spect Imaging Without Using Transmission Data; [Transmisyon Verilerini Kullanmadan Ozel Kardiyak Spect Goruntulemede Atenuasyon Duzeltmesi] JO - Molecular Imaging and Radionuclide Therapy VL - 32 IS - 1 SP - 42 EP - 53 PY - 2023 ER -

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