Non-contrast low-dose CT can be used for volumetry of ADPKD
Abstract Background Kidney volume provides important information for the diagnosis and prognosis of autosomal dominant polycystic kidney disease (ADPKD), as well as for the evaluation of the effects of drugs such as tolvaptan. Non-contrast computed tomography (CT) is commonly used for volumetry, and...
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| Language: | English |
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BMC
2023-10-01
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| Series: | BMC Nephrology |
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| Online Access: | https://doi.org/10.1186/s12882-023-03359-z |
| _version_ | 1827781215368773632 |
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| author | Jaeyeong Yoo Jin up Kim Jisu Kim Sohyun Jeon Young-jin Song Kwang-ho Choi Seok-hyung Kim Jong-woo Yoon Hyunsuk Kim |
| author_facet | Jaeyeong Yoo Jin up Kim Jisu Kim Sohyun Jeon Young-jin Song Kwang-ho Choi Seok-hyung Kim Jong-woo Yoon Hyunsuk Kim |
| author_sort | Jaeyeong Yoo |
| collection | DOAJ |
| description | Abstract Background Kidney volume provides important information for the diagnosis and prognosis of autosomal dominant polycystic kidney disease (ADPKD), as well as for the evaluation of the effects of drugs such as tolvaptan. Non-contrast computed tomography (CT) is commonly used for volumetry, and this study examined the correspondence and correlation of kidney volume measured by standard-dose or low-dose CT. Methods Axial standard-dose and low-dose CT images with 1-mm slices were obtained from 24 ADPKD patients. The kidney was segmented in the Synapse 3D software and the kidney volume was calculated using stereology. The kidney volume was compared between the two sets of images using R2, Bland-Altman plots, coefficient of variation, and intra-class correlation coefficients (ICCs). Results The mean age of the 24 patients was 48.4 ± 10.9 years, and 45.8% were men (n = 11). The mean total kidney volume on standard-dose CT was 1501 ± 838.2 mL. The R2 of volume between standard-dose and low-dose CT was 0.995. In the Bland-Altman plot, except for one case with a large kidney volume, the two measurements were consistent, and the coefficient of variation and ICC were also good (0.02, 0.998). The CT radiation dose (dose-length product) was 229 ± 68 mGy·cm for standard-dose CT and 50 ± 19 mGy·cm for low-dose CT. A comparable volume was obtained with 20% of the radiation dose of standard-dose CT. Conclusions Standard-dose and low-dose CT showed comparable kidney volume in ADPKD. Therefore, low-dose CT can substitute for ADPKD volumetry while minimizing radiation exposure. |
| first_indexed | 2024-03-11T15:15:46Z |
| format | Article |
| id | doaj.art-560e3093d098433782b7445f8e1a00cf |
| institution | Directory Open Access Journal |
| issn | 1471-2369 |
| language | English |
| last_indexed | 2024-03-11T15:15:46Z |
| publishDate | 2023-10-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Nephrology |
| spelling | doaj.art-560e3093d098433782b7445f8e1a00cf2023-10-29T12:17:33ZengBMCBMC Nephrology1471-23692023-10-012411810.1186/s12882-023-03359-zNon-contrast low-dose CT can be used for volumetry of ADPKDJaeyeong Yoo0Jin up Kim1Jisu Kim2Sohyun Jeon3Young-jin Song4Kwang-ho Choi5Seok-hyung Kim6Jong-woo Yoon7Hyunsuk Kim8Department of Internal Medicine, Hallym University Medical Center, Chuncheon Sacred Heart HospitalDepartment of Internal Medicine, Hallym University Medical Center, Chuncheon Sacred Heart HospitalDepartment of Internal Medicine, Hallym University Medical Center, Chuncheon Sacred Heart HospitalDepartment of Internal Medicine, Hallym University Medical Center, Chuncheon Sacred Heart HospitalDepartment of Internal Medicine, Hallym University Medical Center, Chuncheon Sacred Heart HospitalDepartment of Internal Medicine, Hallym University Medical Center, Chuncheon Sacred Heart HospitalDepartment of Internal Medicine, Hallym University Medical Center, Chuncheon Sacred Heart HospitalDepartment of Internal Medicine, Hallym University Medical Center, Chuncheon Sacred Heart HospitalDepartment of Internal Medicine, Hallym University Medical Center, Chuncheon Sacred Heart HospitalAbstract Background Kidney volume provides important information for the diagnosis and prognosis of autosomal dominant polycystic kidney disease (ADPKD), as well as for the evaluation of the effects of drugs such as tolvaptan. Non-contrast computed tomography (CT) is commonly used for volumetry, and this study examined the correspondence and correlation of kidney volume measured by standard-dose or low-dose CT. Methods Axial standard-dose and low-dose CT images with 1-mm slices were obtained from 24 ADPKD patients. The kidney was segmented in the Synapse 3D software and the kidney volume was calculated using stereology. The kidney volume was compared between the two sets of images using R2, Bland-Altman plots, coefficient of variation, and intra-class correlation coefficients (ICCs). Results The mean age of the 24 patients was 48.4 ± 10.9 years, and 45.8% were men (n = 11). The mean total kidney volume on standard-dose CT was 1501 ± 838.2 mL. The R2 of volume between standard-dose and low-dose CT was 0.995. In the Bland-Altman plot, except for one case with a large kidney volume, the two measurements were consistent, and the coefficient of variation and ICC were also good (0.02, 0.998). The CT radiation dose (dose-length product) was 229 ± 68 mGy·cm for standard-dose CT and 50 ± 19 mGy·cm for low-dose CT. A comparable volume was obtained with 20% of the radiation dose of standard-dose CT. Conclusions Standard-dose and low-dose CT showed comparable kidney volume in ADPKD. Therefore, low-dose CT can substitute for ADPKD volumetry while minimizing radiation exposure.https://doi.org/10.1186/s12882-023-03359-zADPKDAgreementCorrelationEllipsoid methodStereologyvolumetry |
| spellingShingle | Jaeyeong Yoo Jin up Kim Jisu Kim Sohyun Jeon Young-jin Song Kwang-ho Choi Seok-hyung Kim Jong-woo Yoon Hyunsuk Kim Non-contrast low-dose CT can be used for volumetry of ADPKD BMC Nephrology ADPKD Agreement Correlation Ellipsoid method Stereology volumetry |
| title | Non-contrast low-dose CT can be used for volumetry of ADPKD |
| title_full | Non-contrast low-dose CT can be used for volumetry of ADPKD |
| title_fullStr | Non-contrast low-dose CT can be used for volumetry of ADPKD |
| title_full_unstemmed | Non-contrast low-dose CT can be used for volumetry of ADPKD |
| title_short | Non-contrast low-dose CT can be used for volumetry of ADPKD |
| title_sort | non contrast low dose ct can be used for volumetry of adpkd |
| topic | ADPKD Agreement Correlation Ellipsoid method Stereology volumetry |
| url | https://doi.org/10.1186/s12882-023-03359-z |
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