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  1. Artikel ; Online: Artificial intelligence in child abuse imaging.

    Sorensen, James I / Nikam, Rahul M / Choudhary, Arabinda K

    Pediatric radiology

    2021  Band 51, Heft 6, Seite(n) 1061–1064

    Abstract: There have been rapid advances in artificial intelligence (AI) technology in recent years, and the field of diagnostic imaging is no exception. Just as digital technology revolutionized how radiology is practiced, so these new technologies also appear ... ...

    Abstract There have been rapid advances in artificial intelligence (AI) technology in recent years, and the field of diagnostic imaging is no exception. Just as digital technology revolutionized how radiology is practiced, so these new technologies also appear poised to bring sweeping change. As AI tools make the transition from the theoretical to the everyday, important decisions need to be made about how they will be applied and what their role will be in the practice of radiology. Pediatric radiology presents distinct challenges and opportunities for the application of these tools, and in this article we discuss some of these, specifically as they relate to the prediction, identification and investigation of child abuse.
    Mesh-Begriff(e) Artificial Intelligence ; Child ; Child Abuse/diagnosis ; Diagnostic Tests, Routine ; Humans ; Radiography ; Radiology
    Sprache Englisch
    Erscheinungsdatum 2021-04-27
    Erscheinungsland Germany
    Dokumenttyp Journal Article ; Review
    ZDB-ID 124459-0
    ISSN 1432-1998 ; 0301-0449
    ISSN (online) 1432-1998
    ISSN 0301-0449
    DOI 10.1007/s00247-021-05073-0
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel: Lung cancer imaging.

    Patil, Shekhar S / Godoy, Myrna C B / Sorensen, James I L / Marom, Edith M

    Seminars in diagnostic pathology

    2014  Band 31, Heft 4, Seite(n) 293–305

    Abstract: Lung cancer remains the leading cause of cancer-related deaths in the US. Imaging plays an important role in the diagnosis, staging, and follow-up evaluation of patients with lung cancer. With recent advances in technology, it is important to update and ... ...

    Abstract Lung cancer remains the leading cause of cancer-related deaths in the US. Imaging plays an important role in the diagnosis, staging, and follow-up evaluation of patients with lung cancer. With recent advances in technology, it is important to update and standardize the radiological practices in lung cancer evaluation. In this article, the authors review the main clinical applications of different imaging modalities and the most common radiological presentations of lung cancer.
    Mesh-Begriff(e) Carcinoma, Non-Small-Cell Lung/diagnostic imaging ; Humans ; Lung Neoplasms/diagnostic imaging ; Neuroendocrine Tumors/diagnostic imaging ; Radiography ; Radionuclide Imaging
    Sprache Englisch
    Erscheinungsdatum 2014-07
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Review
    ZDB-ID 605834-6
    ISSN 1930-1111 ; 0740-2570
    ISSN (online) 1930-1111
    ISSN 0740-2570
    DOI 10.1053/j.semdp.2014.06.007
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel ; Online: Comparison of Standardized Uptake Values in Normal Structures Between PET/CT and PET/MRI in a Tertiary Pediatric Hospital: A Prospective Study.

    Lyons, Karen / Seghers, Victor / Sorensen, James I L / Zhang, Wei / Paldino, Michael J / Krishnamurthy, Rajesh / Rohren, Eric M

    AJR. American journal of roentgenology

    2015  Band 205, Heft 5, Seite(n) 1094–1101

    Abstract: Objective: The purpose of this study was to compare standardized uptake values (SUVs) of normal tissues using MR attenuation-corrected versus CT attenuation-corrected (18)F-FDG PET in a pediatric population.: Subjects and methods: Thirty-five ... ...

    Abstract Objective: The purpose of this study was to compare standardized uptake values (SUVs) of normal tissues using MR attenuation-corrected versus CT attenuation-corrected (18)F-FDG PET in a pediatric population.
    Subjects and methods: Thirty-five patients (21 boys; mean age, 13.3 years) referred for 47 PET/CT scans were recruited to undergo PET/MRI. MR attenuation correction was performed using an automated three-segment model. ROIs were drawn over nine normal structures to estimate SUV(min), SUV(mean), and SUV(max). Pearson rank correlation coefficients were calculated to compare SUVs obtained from MR and CT attenuation correction. In nine patients who underwent multiple PET/MRI studies, coefficients of variance and intraclass correlation coefficients were calculated to evaluate intrapatient SUV(max) variation.
    Results: Mean (± SD) time to imaging after FDG injection was 108 ± 17 minutes for PET/CT and 61 ± 6 minutes for PET/MRI. PET/MRI SUVs in all tissues were lower than those for PET/CT (mean difference, -28.9% ± 31.1%; p < 0.05). Very high or high correlation between PET/MRI and PET/CT SUV(max) was found in brain (r = 0.72), myocardium (r = 0.95), and bone marrow (r = 0.85) (p < 0.001). Moderate correlation was found in liver (r = 0.54), fat (r = 0.41), mean blood pool (r = 0.40), and psoas muscle (r = 0.38) (p < 0.01). Weak correlation was found in lung (r = 0.12) and iliacus muscle (r = 0.12). Compared with PET/CT, PET/MRI systematically undermeasured SUV. In nine patients who underwent multiple PET/MRI examinations, moderate or strong agreement was found in the SUV(max) of six of nine tissues, similar to the corresponding PET/CT examinations.
    Conclusion: Our study showed overall high correlation for SUV measurements obtained from MR attenuation correction compared with CT attenuation correction, although PET/MRI underestimated SUV compared with PET/CT. SUVs measured from PET/MRI indicated good intrapatient reliability.
    Mesh-Begriff(e) Adolescent ; Female ; Fluorodeoxyglucose F18/pharmacokinetics ; Hospitals, Pediatric ; Humans ; Magnetic Resonance Imaging ; Male ; Multimodal Imaging ; Positron-Emission Tomography ; Radiopharmaceuticals/pharmacokinetics ; Reference Values ; Reproducibility of Results ; Tertiary Healthcare ; Tomography, X-Ray Computed
    Chemische Substanzen Radiopharmaceuticals ; Fluorodeoxyglucose F18 (0Z5B2CJX4D)
    Sprache Englisch
    Erscheinungsdatum 2015-11
    Erscheinungsland United States
    Dokumenttyp Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 82076-3
    ISSN 1546-3141 ; 0361-803X ; 0092-5381
    ISSN (online) 1546-3141
    ISSN 0361-803X ; 0092-5381
    DOI 10.2214/AJR.15.14304
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  4. Artikel ; Online: Qualitative FDG PET Image Assessment Using Automated Three-Segment MR Attenuation Correction Versus CT Attenuation Correction in a Tertiary Pediatric Hospital: A Prospective Study.

    Lyons, Karen / Seghers, Victor / Williams, Jennifer L / Sorensen, James I L / Paldino, Michael J / Krishnamurthy, Rajesh / Rohren, Eric M

    AJR. American journal of roentgenology

    2015  Band 205, Heft 3, Seite(n) 652–658

    Abstract: Objective: The purpose of this study was to systematically evaluate the diagnostic quality of (18)F-FDG PET images generated using MR attenuation correction (MRAC) compared with those images generated using CT attenuation correction (CTAC) in a ... ...

    Abstract Objective: The purpose of this study was to systematically evaluate the diagnostic quality of (18)F-FDG PET images generated using MR attenuation correction (MRAC) compared with those images generated using CT attenuation correction (CTAC) in a pediatric population.
    Subjects and methods: Forty-two patients (mean age, 12.8 years; percentage who were male, 57%) who were referred for 62 indicated whole-body PET/CT studies were prospectively recruited to undergo PET/MRI examinations during the same clinic visit in which PET/CT was performed. MRAC was performed using an automatic three-segment model. Three nuclear radiologists scored the diagnostic quality of the PET images generated by MRAC and CTAC using a Likert scale (range of scores, 1-5). Images graded with a score of 1-3 were considered clinically unacceptable, whereas images with a score of 4-5 were considered clinically acceptable. A Wilcoxon signed-rank test was used to compare differences in the grading of PET/MRI and PET/CT images. The Fisher exact test was used to evaluate potential differences in clinically acceptable image quality and the presence of artifact. Fleiss kappa statistics were used to examine interobserver agreement.
    Results: There was no statistically significant difference in the proportion of PET images generated with MRAC and CTAC for which image quality was considered clinically acceptable. A total of 3.9% of PET assessments generated with MRAC were of unacceptable image quality, compared with 2.2% of PET images generated with CTAC. Two of the three radiologists who reviewed the PET images reported the presence of artifacts more often on MRAC-derived images, and they graded the mean quality of these images 0.48 and 0.29 points lower on the 5-point Likert scale than they graded the mean quality of CTAC-derived images (p < 0.0001). Interobserver agreement was fair (κ = 0.39).
    Conclusion: The diagnostic quality of PET images obtained from a pediatric population with the use of an automatic three-segmentation MRAC method was comparable to that of PET images obtained with the use of CTAC.
    Mesh-Begriff(e) Adolescent ; Child ; Child, Preschool ; Female ; Fluorodeoxyglucose F18 ; Hospitals, Pediatric ; Humans ; Infant ; Magnetic Resonance Imaging ; Male ; Multimodal Imaging ; Positron-Emission Tomography ; Prospective Studies ; Radiopharmaceuticals ; Tertiary Care Centers ; Tomography, X-Ray Computed ; Whole Body Imaging ; Young Adult
    Chemische Substanzen Radiopharmaceuticals ; Fluorodeoxyglucose F18 (0Z5B2CJX4D)
    Sprache Englisch
    Erscheinungsdatum 2015-09
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 82076-3
    ISSN 1546-3141 ; 0361-803X ; 0092-5381
    ISSN (online) 1546-3141
    ISSN 0361-803X ; 0092-5381
    DOI 10.2214/AJR.14.14231
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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