Radiomics and machine learning to predict aggressive type 2 endoleaks after endovascular aneurysm repair: a proof of concept
CONCLUSION: Machine-learning algorithms utilizing CTA-derived RF may predict aggressive T2ELs leading to aneurysm sac expansion after EVAR.PMID:34313492 | DOI:10.1177/02841851211032443 (Source: Acta Radiologica)
Source: Acta Radiologica - July 27, 2021 Category: Radiology Authors: Stavros Charalambous Michail E Klontzas Nikolaos Kontopodis Christos V Ioannou Kostas Perisinakis Thomas G Maris John Damilakis Apostolos Karantanas Dimitrios Tsetis Source Type: research

Difficulty factors of adrenal venous sampling based on patient characteristics and imaging findings
CONCLUSION: The long transverse diameter of the belly and high vertebral level of the right adrenal vein may prevent completion of the adrenal venous sampling procedure.PMID:34304605 | DOI:10.1177/02841851211034046 (Source: Acta Radiologica)
Source: Acta Radiologica - July 26, 2021 Category: Radiology Authors: Soma Kumasaka Hiroyuki Tokue Yoshito Tsushima Source Type: research

Excess of visceral adipose tissue with or without aortic elongation leads to a steeper heart position
We examined 346 consecutive patients (58.4% men; mean age = 67.0 ± 14.1 years) who underwent aortic computed tomography angiography (CTA). HAA was measured as the angle between the long axis of the heart and AA midline. The amount of VAT was measured at the level of middle L4 vertebra from a single axial CT slice. Aortic length was measured by combining four anatomical segments in different CTA images. The amount of VAT and aortic length were determined as mild with values in the lowest quartile and as excessive with values in the other three quartiles.RESULTS: A total of 191 patients (55.2%) had no history of aorti...
Source: Acta Radiologica - July 26, 2021 Category: Radiology Authors: S Petteri Kauhanen Petri Saari Tarmo Korpela Timo Liimatainen Ritva Vanninen Marja Hedman Source Type: research

Difficulty factors of adrenal venous sampling based on patient characteristics and imaging findings
CONCLUSION: The long transverse diameter of the belly and high vertebral level of the right adrenal vein may prevent completion of the adrenal venous sampling procedure.PMID:34304605 | DOI:10.1177/02841851211034046 (Source: Acta Radiologica)
Source: Acta Radiologica - July 26, 2021 Category: Radiology Authors: Soma Kumasaka Hiroyuki Tokue Yoshito Tsushima Source Type: research

Excess of visceral adipose tissue with or without aortic elongation leads to a steeper heart position
We examined 346 consecutive patients (58.4% men; mean age = 67.0 ± 14.1 years) who underwent aortic computed tomography angiography (CTA). HAA was measured as the angle between the long axis of the heart and AA midline. The amount of VAT was measured at the level of middle L4 vertebra from a single axial CT slice. Aortic length was measured by combining four anatomical segments in different CTA images. The amount of VAT and aortic length were determined as mild with values in the lowest quartile and as excessive with values in the other three quartiles.RESULTS: A total of 191 patients (55.2%) had no history of aorti...
Source: Acta Radiologica - July 26, 2021 Category: Radiology Authors: S Petteri Kauhanen Petri Saari Tarmo Korpela Timo Liimatainen Ritva Vanninen Marja Hedman Source Type: research

Peripheral and central smell regions in COVID-19 positive patients: an MRI evaluation
CONCLUSION: COVID-19 disease affects the peripheric smell region of OBs and does not affect the central smell regions of the insular gyrus and corpus amygdala areas. The importance of our study is to detect MRI findings in patients with COVID-19 leading to odor disorders. These findings may help in diagnosing the disease at an early stage.PMID:34282630 | DOI:10.1177/02841851211034043 (Source: Acta Radiologica)
Source: Acta Radiologica - July 20, 2021 Category: Radiology Authors: Veysel Burulday Merve Sefa Sayar Nuray Bayar Muluk Source Type: research

Different cerebral functional segregation in Sjogren's syndrome with or without systemic lupus erythematosus revealed by amplitude of low-frequency fluctuation
CONCLUSION: SjS-SLE and SjS exhibited common and different alteration of cerebral functional segregation revealed by AlFF analysis. This result appeared to indicate that SjS-SLE might be different from SjS with a neuroimaging standpoint.PMID:34282631 | DOI:10.1177/02841851211032441 (Source: Acta Radiologica)
Source: Acta Radiologica - July 20, 2021 Category: Radiology Authors: Xiao-Dong Zhang Jun Ke Jing-Li Li Yun-Yan Su Jia-Min Zhou Lin-Ru Zhao Li-Xiang Huang Yue Cheng Wen Shen Source Type: research

Peripheral and central smell regions in COVID-19 positive patients: an MRI evaluation
CONCLUSION: COVID-19 disease affects the peripheric smell region of OBs and does not affect the central smell regions of the insular gyrus and corpus amygdala areas. The importance of our study is to detect MRI findings in patients with COVID-19 leading to odor disorders. These findings may help in diagnosing the disease at an early stage.PMID:34282630 | DOI:10.1177/02841851211034043 (Source: Acta Radiologica)
Source: Acta Radiologica - July 20, 2021 Category: Radiology Authors: Veysel Burulday Merve Sefa Sayar Nuray Bayar Muluk Source Type: research

Different cerebral functional segregation in Sjogren's syndrome with or without systemic lupus erythematosus revealed by amplitude of low-frequency fluctuation
CONCLUSION: SjS-SLE and SjS exhibited common and different alteration of cerebral functional segregation revealed by AlFF analysis. This result appeared to indicate that SjS-SLE might be different from SjS with a neuroimaging standpoint.PMID:34282631 | DOI:10.1177/02841851211032441 (Source: Acta Radiologica)
Source: Acta Radiologica - July 20, 2021 Category: Radiology Authors: Xiao-Dong Zhang Jun Ke Jing-Li Li Yun-Yan Su Jia-Min Zhou Lin-Ru Zhao Li-Xiang Huang Yue Cheng Wen Shen Source Type: research

Peripheral and central smell regions in COVID-19 positive patients: an MRI evaluation
CONCLUSION: COVID-19 disease affects the peripheric smell region of OBs and does not affect the central smell regions of the insular gyrus and corpus amygdala areas. The importance of our study is to detect MRI findings in patients with COVID-19 leading to odor disorders. These findings may help in diagnosing the disease at an early stage.PMID:34282630 | DOI:10.1177/02841851211034043 (Source: Acta Radiologica)
Source: Acta Radiologica - July 20, 2021 Category: Radiology Authors: Veysel Burulday Merve Sefa Sayar Nuray Bayar Muluk Source Type: research

Different cerebral functional segregation in Sjogren's syndrome with or without systemic lupus erythematosus revealed by amplitude of low-frequency fluctuation
CONCLUSION: SjS-SLE and SjS exhibited common and different alteration of cerebral functional segregation revealed by AlFF analysis. This result appeared to indicate that SjS-SLE might be different from SjS with a neuroimaging standpoint.PMID:34282631 | DOI:10.1177/02841851211032441 (Source: Acta Radiologica)
Source: Acta Radiologica - July 20, 2021 Category: Radiology Authors: Xiao-Dong Zhang Jun Ke Jing-Li Li Yun-Yan Su Jia-Min Zhou Lin-Ru Zhao Li-Xiang Huang Yue Cheng Wen Shen Source Type: research

Peripheral and central smell regions in COVID-19 positive patients: an MRI evaluation
CONCLUSION: COVID-19 disease affects the peripheric smell region of OBs and does not affect the central smell regions of the insular gyrus and corpus amygdala areas. The importance of our study is to detect MRI findings in patients with COVID-19 leading to odor disorders. These findings may help in diagnosing the disease at an early stage.PMID:34282630 | DOI:10.1177/02841851211034043 (Source: Acta Radiologica)
Source: Acta Radiologica - July 20, 2021 Category: Radiology Authors: Veysel Burulday Merve Sefa Sayar Nuray Bayar Muluk Source Type: research

Different cerebral functional segregation in Sjogren's syndrome with or without systemic lupus erythematosus revealed by amplitude of low-frequency fluctuation
CONCLUSION: SjS-SLE and SjS exhibited common and different alteration of cerebral functional segregation revealed by AlFF analysis. This result appeared to indicate that SjS-SLE might be different from SjS with a neuroimaging standpoint.PMID:34282631 | DOI:10.1177/02841851211032441 (Source: Acta Radiologica)
Source: Acta Radiologica - July 20, 2021 Category: Radiology Authors: Xiao-Dong Zhang Jun Ke Jing-Li Li Yun-Yan Su Jia-Min Zhou Lin-Ru Zhao Li-Xiang Huang Yue Cheng Wen Shen Source Type: research

Peripheral and central smell regions in COVID-19 positive patients: an MRI evaluation
CONCLUSION: COVID-19 disease affects the peripheric smell region of OBs and does not affect the central smell regions of the insular gyrus and corpus amygdala areas. The importance of our study is to detect MRI findings in patients with COVID-19 leading to odor disorders. These findings may help in diagnosing the disease at an early stage.PMID:34282630 | DOI:10.1177/02841851211034043 (Source: Acta Radiologica)
Source: Acta Radiologica - July 20, 2021 Category: Radiology Authors: Veysel Burulday Merve Sefa Sayar Nuray Bayar Muluk Source Type: research

Different cerebral functional segregation in Sjogren's syndrome with or without systemic lupus erythematosus revealed by amplitude of low-frequency fluctuation
CONCLUSION: SjS-SLE and SjS exhibited common and different alteration of cerebral functional segregation revealed by AlFF analysis. This result appeared to indicate that SjS-SLE might be different from SjS with a neuroimaging standpoint.PMID:34282631 | DOI:10.1177/02841851211032441 (Source: Acta Radiologica)
Source: Acta Radiologica - July 20, 2021 Category: Radiology Authors: Xiao-Dong Zhang Jun Ke Jing-Li Li Yun-Yan Su Jia-Min Zhou Lin-Ru Zhao Li-Xiang Huang Yue Cheng Wen Shen Source Type: research

Using modulated and smoothed data improves detectability of volume difference in group comparison, but reduces accuracy with atlas-based volumetry using Statistical Parametric Mapping 12 software
CONCLUSION: Our study shows that using smoothed data can improve detectability in group comparison. However, using smoothed data reduces the accuracy of volumetry.PMID:34279134 | DOI:10.1177/02841851211032442 (Source: Acta Radiologica)
Source: Acta Radiologica - July 19, 2021 Category: Radiology Authors: Masami Goto Syo Murata Masaaki Hori Kiyotaka Nemoto Koji Kamatgata Shigeki Aoki Osamu Abe Hajime Sakamoto Yasuaki Sakano Shinsuke Kyogoku Hiroyuki Daida Source Type: research

The diagnostic efficiency of the perfusion-related parameters in assessing the vascular disrupting agent (CA4P) response in a rabbit VX2 liver tumor model
Acta Radiol. 2021 Jul 19:2841851211032450. doi: 10.1177/02841851211032450. Online ahead of print.ABSTRACTBACKGROUND: There are inconsistencies when concomitantly using dynamic contrast enhancement (DCE) and intravoxel incoherent motion (IVIM) to evaluate diagnostic efficiency.PURPOSE: To evaluate the diagnostic efficiency of perfusion-related parameters in assessing the effect of Combretastatin-A4-phosphate (CA4P) in a rabbit VX2 liver tumor model using DCE and IVIM.MATERIAL AND METHODS: Twenty rabbits implanted with VX2 tumors were included in the study. The perfusion-parameters of DCE (Ktrans and iAUC60) and IVIM (f and ...
Source: Acta Radiologica - July 19, 2021 Category: Radiology Authors: Fanhua Meng Biao Zou Rong Yang Qingqing Duan Ting Qian Source Type: research

Using modulated and smoothed data improves detectability of volume difference in group comparison, but reduces accuracy with atlas-based volumetry using Statistical Parametric Mapping 12 software
CONCLUSION: Our study shows that using smoothed data can improve detectability in group comparison. However, using smoothed data reduces the accuracy of volumetry.PMID:34279134 | DOI:10.1177/02841851211032442 (Source: Acta Radiologica)
Source: Acta Radiologica - July 19, 2021 Category: Radiology Authors: Masami Goto Syo Murata Masaaki Hori Kiyotaka Nemoto Koji Kamatgata Shigeki Aoki Osamu Abe Hajime Sakamoto Yasuaki Sakano Shinsuke Kyogoku Hiroyuki Daida Source Type: research

The diagnostic efficiency of the perfusion-related parameters in assessing the vascular disrupting agent (CA4P) response in a rabbit VX2 liver tumor model
Acta Radiol. 2021 Jul 19:2841851211032450. doi: 10.1177/02841851211032450. Online ahead of print.ABSTRACTBACKGROUND: There are inconsistencies when concomitantly using dynamic contrast enhancement (DCE) and intravoxel incoherent motion (IVIM) to evaluate diagnostic efficiency.PURPOSE: To evaluate the diagnostic efficiency of perfusion-related parameters in assessing the effect of Combretastatin-A4-phosphate (CA4P) in a rabbit VX2 liver tumor model using DCE and IVIM.MATERIAL AND METHODS: Twenty rabbits implanted with VX2 tumors were included in the study. The perfusion-parameters of DCE (Ktrans and iAUC60) and IVIM (f and ...
Source: Acta Radiologica - July 19, 2021 Category: Radiology Authors: Fanhua Meng Biao Zou Rong Yang Qingqing Duan Ting Qian Source Type: research

Fluoroscopy-guided percutaneous antegrade approach for ureteral stent placement in children: a single-center experience
CONCLUSION: PAUS through the nephrostomy route in children is an effective and reliable method when surgical treatment is not feasible.PMID:34259018 | DOI:10.1177/02841851211030782 (Source: Acta Radiologica)
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Nevzat Herdem Guven Kahriman Aytac Dogan Cenk Hosgecin Cuneyt Turan Ozlem Oz Gergin Source Type: research

White matter imaging of ethanol-fixed rat brain by phase-contrast X-ray computed tomography
Acta Radiol. 2021 Jul 14:2841851211030776. doi: 10.1177/02841851211030776. Online ahead of print.ABSTRACTBACKGROUND: Phase-contrast X-ray computed tomography imaging (PCI) based on crystal X-ray interferometry can detect minute density differences within biological soft tissues without contrast agents. Ethanol fixation yields increased tissue-background density differences due to the dehydrating and delipidifying effects of ethanol.PURPOSE: To obtain high image contrast of cerebral white matter structures in PCI, tissue fixation using ethanol and routinely used formalin have been examined.MATERIAL AND METHODS: Ethanol-fixe...
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Thet-Thet- Lwin Akio Yoneyama Shogo Kokubo Hiroko Maruyama Kazuyuki Hyodo Tohoru Takeda Source Type: research

Quantitative breast density measurement based on three-dimensional images: a study on cone-beam breast computed tomography
Acta Radiol. 2021 Jul 14:2841851211027386. doi: 10.1177/02841851211027386. Online ahead of print.ABSTRACTBACKGROUND: Breast density is an independent predictor of breast cancer risk. Quantitative volumetric breast density (QVBD) is expected to provide more information on the prediction of breast cancer risk.PURPOSE: To evaluate the reliability of QVBD measurements based on cone-beam breast computed tomography (CBBCT) images.MATERIAL AND METHODS: A total of 216 breasts were used to evaluate the stability of QVBD measurements based on CBBCT images and the correlations between this volumetric measurement and visual and area-b...
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Aidi Liu Lu Yin Yue Ma Peng Han Yalin Wu Yaopan Wu Zhaoxiang Ye Source Type: research

Morphological changes in the pons and cerebellum during the first two weeks in term infants with pontine and cerebellar injury and profound neonatal asphyxia
Acta Radiol. 2021 Jul 14:2841851211030777. doi: 10.1177/02841851211030777. Online ahead of print.ABSTRACTBACKGROUND: The morphological changes in the pons and cerebellum of neonates experiencing profound asphyxia in the early period of life remain to be clarified.PURPOSE: To assess the changes in the size of the pons and cerebellum during the first two weeks of life in term neonates with pontine and cerebellar injury caused by hypoxic-ischemic encephalopathy in comparison with a control group.MATERIAL AND METHODS: Two groups were investigated: a group with pontine/cerebellar injury (PCI) (n = 10) demonstrated by magnetic r...
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Katsumi Hayakawa Koichi Tanda Akira Nishimura Daisuke Kinoshita Masakazu Nishimoto Zenro Kizaki Koji Ohno Source Type: research

Diagnostic performance of tomosynthesis for evaluation of bone tumors and tumor-like lesions: a comparison with radiography
CONCLUSION: Tomosynthesis increases sensitivity and accuracy of the margin as well as accuracy of the matrix mineralization of bone tumors and tumor-like lesions compared to radiography.PMID:34260321 | DOI:10.1177/02841851211032436 (Source: Acta Radiologica)
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Sekyoung Park In Sook Lee You Seon Song Ji Hyun Bae Jeong Il Kim Chang Won Kim Source Type: research

Diagnostic value of mammography for accompanying non-mass enhancement on preoperative breast MRI
CONCLUSION: Mammography is valuable in predicting malignancy for accompanying NME on preoperative breast MRI.PMID:34260322 | DOI:10.1177/02841851211030771 (Source: Acta Radiologica)
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Yunju Kim Hae Kyoung Jung Ah Young Park Kyung Hee Ko Hyunkyung Jang Source Type: research

Fluoroscopy-guided percutaneous antegrade approach for ureteral stent placement in children: a single-center experience
CONCLUSION: PAUS through the nephrostomy route in children is an effective and reliable method when surgical treatment is not feasible.PMID:34259018 | DOI:10.1177/02841851211030782 (Source: Acta Radiologica)
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Nevzat Herdem Guven Kahriman Aytac Dogan Cenk Hosgecin Cuneyt Turan Ozlem Oz Gergin Source Type: research

White matter imaging of ethanol-fixed rat brain by phase-contrast X-ray computed tomography
Acta Radiol. 2021 Jul 14:2841851211030776. doi: 10.1177/02841851211030776. Online ahead of print.ABSTRACTBACKGROUND: Phase-contrast X-ray computed tomography imaging (PCI) based on crystal X-ray interferometry can detect minute density differences within biological soft tissues without contrast agents. Ethanol fixation yields increased tissue-background density differences due to the dehydrating and delipidifying effects of ethanol.PURPOSE: To obtain high image contrast of cerebral white matter structures in PCI, tissue fixation using ethanol and routinely used formalin have been examined.MATERIAL AND METHODS: Ethanol-fixe...
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Thet-Thet- Lwin Akio Yoneyama Shogo Kokubo Hiroko Maruyama Kazuyuki Hyodo Tohoru Takeda Source Type: research

Quantitative breast density measurement based on three-dimensional images: a study on cone-beam breast computed tomography
Acta Radiol. 2021 Jul 14:2841851211027386. doi: 10.1177/02841851211027386. Online ahead of print.ABSTRACTBACKGROUND: Breast density is an independent predictor of breast cancer risk. Quantitative volumetric breast density (QVBD) is expected to provide more information on the prediction of breast cancer risk.PURPOSE: To evaluate the reliability of QVBD measurements based on cone-beam breast computed tomography (CBBCT) images.MATERIAL AND METHODS: A total of 216 breasts were used to evaluate the stability of QVBD measurements based on CBBCT images and the correlations between this volumetric measurement and visual and area-b...
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Aidi Liu Lu Yin Yue Ma Peng Han Yalin Wu Yaopan Wu Zhaoxiang Ye Source Type: research

Morphological changes in the pons and cerebellum during the first two weeks in term infants with pontine and cerebellar injury and profound neonatal asphyxia
Acta Radiol. 2021 Jul 14:2841851211030777. doi: 10.1177/02841851211030777. Online ahead of print.ABSTRACTBACKGROUND: The morphological changes in the pons and cerebellum of neonates experiencing profound asphyxia in the early period of life remain to be clarified.PURPOSE: To assess the changes in the size of the pons and cerebellum during the first two weeks of life in term neonates with pontine and cerebellar injury caused by hypoxic-ischemic encephalopathy in comparison with a control group.MATERIAL AND METHODS: Two groups were investigated: a group with pontine/cerebellar injury (PCI) (n = 10) demonstrated by magnetic r...
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Katsumi Hayakawa Koichi Tanda Akira Nishimura Daisuke Kinoshita Masakazu Nishimoto Zenro Kizaki Koji Ohno Source Type: research

Diagnostic performance of tomosynthesis for evaluation of bone tumors and tumor-like lesions: a comparison with radiography
CONCLUSION: Tomosynthesis increases sensitivity and accuracy of the margin as well as accuracy of the matrix mineralization of bone tumors and tumor-like lesions compared to radiography.PMID:34260321 | DOI:10.1177/02841851211032436 (Source: Acta Radiologica)
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Sekyoung Park In Sook Lee You Seon Song Ji Hyun Bae Jeong Il Kim Chang Won Kim Source Type: research

Diagnostic value of mammography for accompanying non-mass enhancement on preoperative breast MRI
CONCLUSION: Mammography is valuable in predicting malignancy for accompanying NME on preoperative breast MRI.PMID:34260322 | DOI:10.1177/02841851211030771 (Source: Acta Radiologica)
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Yunju Kim Hae Kyoung Jung Ah Young Park Kyung Hee Ko Hyunkyung Jang Source Type: research

Fluoroscopy-guided percutaneous antegrade approach for ureteral stent placement in children: a single-center experience
CONCLUSION: PAUS through the nephrostomy route in children is an effective and reliable method when surgical treatment is not feasible.PMID:34259018 | DOI:10.1177/02841851211030782 (Source: Acta Radiologica)
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Nevzat Herdem Guven Kahriman Aytac Dogan Cenk Hosgecin Cuneyt Turan Ozlem Oz Gergin Source Type: research

White matter imaging of ethanol-fixed rat brain by phase-contrast X-ray computed tomography
Acta Radiol. 2021 Jul 14:2841851211030776. doi: 10.1177/02841851211030776. Online ahead of print.ABSTRACTBACKGROUND: Phase-contrast X-ray computed tomography imaging (PCI) based on crystal X-ray interferometry can detect minute density differences within biological soft tissues without contrast agents. Ethanol fixation yields increased tissue-background density differences due to the dehydrating and delipidifying effects of ethanol.PURPOSE: To obtain high image contrast of cerebral white matter structures in PCI, tissue fixation using ethanol and routinely used formalin have been examined.MATERIAL AND METHODS: Ethanol-fixe...
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Thet-Thet- Lwin Akio Yoneyama Shogo Kokubo Hiroko Maruyama Kazuyuki Hyodo Tohoru Takeda Source Type: research

Quantitative breast density measurement based on three-dimensional images: a study on cone-beam breast computed tomography
Acta Radiol. 2021 Jul 14:2841851211027386. doi: 10.1177/02841851211027386. Online ahead of print.ABSTRACTBACKGROUND: Breast density is an independent predictor of breast cancer risk. Quantitative volumetric breast density (QVBD) is expected to provide more information on the prediction of breast cancer risk.PURPOSE: To evaluate the reliability of QVBD measurements based on cone-beam breast computed tomography (CBBCT) images.MATERIAL AND METHODS: A total of 216 breasts were used to evaluate the stability of QVBD measurements based on CBBCT images and the correlations between this volumetric measurement and visual and area-b...
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Aidi Liu Lu Yin Yue Ma Peng Han Yalin Wu Yaopan Wu Zhaoxiang Ye Source Type: research

Morphological changes in the pons and cerebellum during the first two weeks in term infants with pontine and cerebellar injury and profound neonatal asphyxia
Acta Radiol. 2021 Jul 14:2841851211030777. doi: 10.1177/02841851211030777. Online ahead of print.ABSTRACTBACKGROUND: The morphological changes in the pons and cerebellum of neonates experiencing profound asphyxia in the early period of life remain to be clarified.PURPOSE: To assess the changes in the size of the pons and cerebellum during the first two weeks of life in term neonates with pontine and cerebellar injury caused by hypoxic-ischemic encephalopathy in comparison with a control group.MATERIAL AND METHODS: Two groups were investigated: a group with pontine/cerebellar injury (PCI) (n = 10) demonstrated by magnetic r...
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Katsumi Hayakawa Koichi Tanda Akira Nishimura Daisuke Kinoshita Masakazu Nishimoto Zenro Kizaki Koji Ohno Source Type: research

Diagnostic performance of tomosynthesis for evaluation of bone tumors and tumor-like lesions: a comparison with radiography
CONCLUSION: Tomosynthesis increases sensitivity and accuracy of the margin as well as accuracy of the matrix mineralization of bone tumors and tumor-like lesions compared to radiography.PMID:34260321 | DOI:10.1177/02841851211032436 (Source: Acta Radiologica)
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Sekyoung Park In Sook Lee You Seon Song Ji Hyun Bae Jeong Il Kim Chang Won Kim Source Type: research

Diagnostic value of mammography for accompanying non-mass enhancement on preoperative breast MRI
CONCLUSION: Mammography is valuable in predicting malignancy for accompanying NME on preoperative breast MRI.PMID:34260322 | DOI:10.1177/02841851211030771 (Source: Acta Radiologica)
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Yunju Kim Hae Kyoung Jung Ah Young Park Kyung Hee Ko Hyunkyung Jang Source Type: research

Fluoroscopy-guided percutaneous antegrade approach for ureteral stent placement in children: a single-center experience
CONCLUSION: PAUS through the nephrostomy route in children is an effective and reliable method when surgical treatment is not feasible.PMID:34259018 | DOI:10.1177/02841851211030782 (Source: Acta Radiologica)
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Nevzat Herdem Guven Kahriman Aytac Dogan Cenk Hosgecin Cuneyt Turan Ozlem Oz Gergin Source Type: research

White matter imaging of ethanol-fixed rat brain by phase-contrast X-ray computed tomography
Acta Radiol. 2021 Jul 14:2841851211030776. doi: 10.1177/02841851211030776. Online ahead of print.ABSTRACTBACKGROUND: Phase-contrast X-ray computed tomography imaging (PCI) based on crystal X-ray interferometry can detect minute density differences within biological soft tissues without contrast agents. Ethanol fixation yields increased tissue-background density differences due to the dehydrating and delipidifying effects of ethanol.PURPOSE: To obtain high image contrast of cerebral white matter structures in PCI, tissue fixation using ethanol and routinely used formalin have been examined.MATERIAL AND METHODS: Ethanol-fixe...
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Thet-Thet- Lwin Akio Yoneyama Shogo Kokubo Hiroko Maruyama Kazuyuki Hyodo Tohoru Takeda Source Type: research

Quantitative breast density measurement based on three-dimensional images: a study on cone-beam breast computed tomography
Acta Radiol. 2021 Jul 14:2841851211027386. doi: 10.1177/02841851211027386. Online ahead of print.ABSTRACTBACKGROUND: Breast density is an independent predictor of breast cancer risk. Quantitative volumetric breast density (QVBD) is expected to provide more information on the prediction of breast cancer risk.PURPOSE: To evaluate the reliability of QVBD measurements based on cone-beam breast computed tomography (CBBCT) images.MATERIAL AND METHODS: A total of 216 breasts were used to evaluate the stability of QVBD measurements based on CBBCT images and the correlations between this volumetric measurement and visual and area-b...
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Aidi Liu Lu Yin Yue Ma Peng Han Yalin Wu Yaopan Wu Zhaoxiang Ye Source Type: research

Morphological changes in the pons and cerebellum during the first two weeks in term infants with pontine and cerebellar injury and profound neonatal asphyxia
Acta Radiol. 2021 Jul 14:2841851211030777. doi: 10.1177/02841851211030777. Online ahead of print.ABSTRACTBACKGROUND: The morphological changes in the pons and cerebellum of neonates experiencing profound asphyxia in the early period of life remain to be clarified.PURPOSE: To assess the changes in the size of the pons and cerebellum during the first two weeks of life in term neonates with pontine and cerebellar injury caused by hypoxic-ischemic encephalopathy in comparison with a control group.MATERIAL AND METHODS: Two groups were investigated: a group with pontine/cerebellar injury (PCI) (n = 10) demonstrated by magnetic r...
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Katsumi Hayakawa Koichi Tanda Akira Nishimura Daisuke Kinoshita Masakazu Nishimoto Zenro Kizaki Koji Ohno Source Type: research

Diagnostic performance of tomosynthesis for evaluation of bone tumors and tumor-like lesions: a comparison with radiography
CONCLUSION: Tomosynthesis increases sensitivity and accuracy of the margin as well as accuracy of the matrix mineralization of bone tumors and tumor-like lesions compared to radiography.PMID:34260321 | DOI:10.1177/02841851211032436 (Source: Acta Radiologica)
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Sekyoung Park In Sook Lee You Seon Song Ji Hyun Bae Jeong Il Kim Chang Won Kim Source Type: research

Diagnostic value of mammography for accompanying non-mass enhancement on preoperative breast MRI
CONCLUSION: Mammography is valuable in predicting malignancy for accompanying NME on preoperative breast MRI.PMID:34260322 | DOI:10.1177/02841851211030771 (Source: Acta Radiologica)
Source: Acta Radiologica - July 14, 2021 Category: Radiology Authors: Yunju Kim Hae Kyoung Jung Ah Young Park Kyung Hee Ko Hyunkyung Jang Source Type: research

The clinical value of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) semi-quantitative parameters in monitoring neoadjuvant chemotherapy response of osteosarcoma
Acta Radiol. 2021 Jul 11:2841851211030768. doi: 10.1177/02841851211030768. Online ahead of print.ABSTRACTBACKGROUND: Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is a non-invasive technique which could monitor tumor morphology, blood vessel dynamics, and micro-environmental changes.PURPOSE: To evaluate the value of DCE-MRI semi-quantitative parameters in monitoring the neoadjuvant chemotherapy (NAC) response of osteosarcoma.MATERIAL AND METHODS: Twenty-five patients pathologically confirmed as osteosarcoma received four cycles of NAC followed by surgery. All patients underwent conventional and dynamic MRI...
Source: Acta Radiologica - July 12, 2021 Category: Radiology Authors: Yan-Ni Zeng Bu-Tian Zhang Ting Song Jian-Feng Peng Juan-Ting Wang Qiang Yuan Min-Yi Tan Source Type: research

Intra- and inter-rater reliability for the measurement of the cross-sectional area of ankle tendons assessed by magnetic resonance imaging
CONCLUSION: Reliability for the CSA of ankle tendons measured from MRI taken by independent rates was very high, with the smallest differences between raters observed when the thinnest tendon was analyzed.PMID:34247515 | DOI:10.1177/02841851211003284 (Source: Acta Radiologica)
Source: Acta Radiologica - July 12, 2021 Category: Radiology Authors: Henrique Mansur Guilherme Estanislau Marcos de Noronha Rita de Cassia Marqueti Emerson Fachin-Martins Jo ão Luiz Quagliotti Durigan Source Type: research

The stiffness of transplanted kidneys changes with time after renal transplantation
CONCLUSION: Consecutive stiffness measurement of transplanted kidneys is an effective method for monitoring the function of transplanted kidneys. According to the change in transplanted kidney stiffness, we can designate a more scientific review plan to determine the functional status of the transplanted kidney.PMID:34247516 | DOI:10.1177/02841851211030770 (Source: Acta Radiologica)
Source: Acta Radiologica - July 12, 2021 Category: Radiology Authors: Shaona Chen Jin Li Bidan Zeng Zhimin Zhu Yanhua Luo Fei Chen Shaodong Qiu Source Type: research

The clinical value of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) semi-quantitative parameters in monitoring neoadjuvant chemotherapy response of osteosarcoma
Acta Radiol. 2021 Jul 11:2841851211030768. doi: 10.1177/02841851211030768. Online ahead of print.ABSTRACTBACKGROUND: Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is a non-invasive technique which could monitor tumor morphology, blood vessel dynamics, and micro-environmental changes.PURPOSE: To evaluate the value of DCE-MRI semi-quantitative parameters in monitoring the neoadjuvant chemotherapy (NAC) response of osteosarcoma.MATERIAL AND METHODS: Twenty-five patients pathologically confirmed as osteosarcoma received four cycles of NAC followed by surgery. All patients underwent conventional and dynamic MRI...
Source: Acta Radiologica - July 12, 2021 Category: Radiology Authors: Yan-Ni Zeng Bu-Tian Zhang Ting Song Jian-Feng Peng Juan-Ting Wang Qiang Yuan Min-Yi Tan Source Type: research

Intra- and inter-rater reliability for the measurement of the cross-sectional area of ankle tendons assessed by magnetic resonance imaging
CONCLUSION: Reliability for the CSA of ankle tendons measured from MRI taken by independent rates was very high, with the smallest differences between raters observed when the thinnest tendon was analyzed.PMID:34247515 | DOI:10.1177/02841851211003284 (Source: Acta Radiologica)
Source: Acta Radiologica - July 12, 2021 Category: Radiology Authors: Henrique Mansur Guilherme Estanislau Marcos de Noronha Rita de Cassia Marqueti Emerson Fachin-Martins Jo ão Luiz Quagliotti Durigan Source Type: research

The stiffness of transplanted kidneys changes with time after renal transplantation
CONCLUSION: Consecutive stiffness measurement of transplanted kidneys is an effective method for monitoring the function of transplanted kidneys. According to the change in transplanted kidney stiffness, we can designate a more scientific review plan to determine the functional status of the transplanted kidney.PMID:34247516 | DOI:10.1177/02841851211030770 (Source: Acta Radiologica)
Source: Acta Radiologica - July 12, 2021 Category: Radiology Authors: Shaona Chen Jin Li Bidan Zeng Zhimin Zhu Yanhua Luo Fei Chen Shaodong Qiu Source Type: research

The clinical value of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) semi-quantitative parameters in monitoring neoadjuvant chemotherapy response of osteosarcoma
Acta Radiol. 2021 Jul 11:2841851211030768. doi: 10.1177/02841851211030768. Online ahead of print.ABSTRACTBACKGROUND: Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is a non-invasive technique which could monitor tumor morphology, blood vessel dynamics, and micro-environmental changes.PURPOSE: To evaluate the value of DCE-MRI semi-quantitative parameters in monitoring the neoadjuvant chemotherapy (NAC) response of osteosarcoma.MATERIAL AND METHODS: Twenty-five patients pathologically confirmed as osteosarcoma received four cycles of NAC followed by surgery. All patients underwent conventional and dynamic MRI...
Source: Acta Radiologica - July 12, 2021 Category: Radiology Authors: Yan-Ni Zeng Bu-Tian Zhang Ting Song Jian-Feng Peng Juan-Ting Wang Qiang Yuan Min-Yi Tan Source Type: research