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Hansson LS, Tognetti A, Sigurjónsson P, Brück E, Wåhlén K, Jensen K, Olsson MJ, Toll John R, Wilhelms DB, Lekander M, Lasselin J. Perception of unfamiliar caregivers during sickness - Using the new caregiver perception task (CgPT) during experimental endotoxemia. Brain Behav Immun 2024:S0889-1591(24)00379-9. [PMID: 38670241 DOI: 10.1016/j.bbi.2024.04.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 03/25/2024] [Accepted: 04/22/2024] [Indexed: 04/28/2024] Open
Abstract
Social withdrawal is a well-established part of sickness behavior, but in some contexts sick animals might gain from keeping close instead of keeping away. For instance, sick individuals are more willing to be near known individuals who can provide care and safety (close others) compared to when healthy. Yet, interactions with some strangers might also be beneficial (i.e., healthcare professionals), but it is not known how sickness interplay with social behavior towards such individuals. Here, we assessed if sickness affects perception of caregivers and developed a new task, the Caregiver Perception Task (CgPT). Twenty-six participants conducted the CgPT, once after an injection of lipopolysaccharide (LPS, 0.8 ng/kg body weight, n = 24), and once after an injection of saline (n = 25), one hour and forty-five minutes post-injection. During the task, participants watched short videeo-clips of three types of caregivers: a healthcare professional taking care of a sick individual (HP-c), a healthcare professional not taking care of a sick individual (HP-nc), and a non-healthcare professional taking care of their sick adult child or partner (NHP-c). After each videeo clip, the likability, trustworthiness, professionalism, and willingness to interact with and receive care from the caregiver were rated on visual analogue scales. Results showed that participants injected with saline rated healthcare professionals who did not take care of a sick individual less positively on all aspects compared to healthcare professionals who took care of a sick individual. Moreover, compared to saline, LPS increased the participants' willingness to receive care from healthcare professionals and non-healthcare professionals providing care, but not from healthcare professionals not providing care. Thus, our results indicate that sick individuals may approach unknown individuals with potential to provide care and support.
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Affiliation(s)
- L S Hansson
- Stress Research Institute, Department of Psychology, Stockholm University, Stockholm, Sweden; Division of Psychology, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden; Osher Center for Integrative Health, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - A Tognetti
- Division of Psychology, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden; CEE-M, CNRS, INRAE, Institut Agro, University of Montpellier, Montpellier, France
| | | | - E Brück
- Karolinska University Hospital, Stockholm, Sweden
| | - K Wåhlén
- Pain and Rehabilitation Centre, Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
| | - K Jensen
- Osher Center for Integrative Health, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden; Division of Neuro, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - M J Olsson
- Division of Psychology, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - R Toll John
- Department of Biomedical and Clinical Sciences, Linköping University, Sweden; Department of Emergency Medicine in Linköping, Local Health Care Services in Central Östergötland, Region Östergötland
| | - D B Wilhelms
- Department of Biomedical and Clinical Sciences, Linköping University, Sweden; Department of Emergency Medicine in Linköping, Local Health Care Services in Central Östergötland, Region Östergötland
| | - M Lekander
- Stress Research Institute, Department of Psychology, Stockholm University, Stockholm, Sweden; Division of Psychology, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden; Osher Center for Integrative Health, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - J Lasselin
- Stress Research Institute, Department of Psychology, Stockholm University, Stockholm, Sweden; Division of Psychology, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden; Osher Center for Integrative Health, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
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Varghese BA, Cen SY, Jensen K, Levy J, Andersen HK, Schulz A, Lei X, Duddalwar VA, Goodenough DJ. Investigating the role of imaging factors in the variability of CT-based texture analysis metrics. J Appl Clin Med Phys 2024; 25:e14192. [PMID: 37962032 PMCID: PMC11005980 DOI: 10.1002/acm2.14192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 08/02/2023] [Accepted: 10/12/2023] [Indexed: 11/15/2023] Open
Abstract
OBJECTIVE This study assesses the robustness of first-order radiomic texture features namely interquartile range (IQR), coefficient of variation (CV) and standard deviation (SD) derived from computed tomography (CT) images by varying dose, reconstruction algorithms and slice thickness using scans of a uniform water phantom, a commercial anthropomorphic liver phantom, and a human liver in-vivo. MATERIALS AND METHODS Scans were acquired on a 16 cm detector GE Revolution Apex Edition CT scanner with variations across three different nominal slice thicknesses: 0.625, 1.25, and 2.5 mm, three different dose levels: CTDIvol of 13.86 mGy for the standard dose, 40% reduced dose and 60% reduced dose and two different reconstruction algorithms: a deep learning image reconstruction (DLIR-high) algorithm and a hybrid iterative reconstruction (IR) algorithm ASiR-V50% (AV50) were explored, varying one at a time. To assess the effect of non-linear modifications of images by AV50 and DLIR-high, images of the water phantom were also reconstructed using filtered back projection (FBP). Quantitative measures of IQR, CV and SD were extracted from twelve pre-selected, circular (1 cm diameter) regions of interest (ROIs) capturing different texture patterns across all scans. RESULTS Across all scans, imaging, and reconstruction settings, CV, IQR and SD were observed to increase with reduction in dose and slice thickness. An exception to this observation was found when using FBP reconstruction. Lower values of CV, IQR and SD were observed in DLIR-high reconstructions compared to AV50 and FBP. The Poisson statistics were more stringently noted in FBP than DLIR-high and AV50, due to the non-linear nature of the latter two algorithms. CONCLUSION Variation in image noise due to dose reduction algorithms, tube current, and slice thickness show a consistent trend across phantom and patient scans. Prospective evaluation across multiple centers, scanners and imaging protocols is needed for establishing quality assurance standards of radiomics.
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Affiliation(s)
- Bino Abel Varghese
- Keck Medical CenterDepartment of RadiologyUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Steven Yong Cen
- Keck Medical CenterDepartment of RadiologyUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Kristin Jensen
- Department of Physics and Computational RadiologyOsloNorway
| | | | | | - Anselm Schulz
- Department of Radiology and Nuclear MedicineOslo University HospitalOsloNorway
| | - Xiaomeng Lei
- Keck Medical CenterDepartment of RadiologyUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Vinay Anant Duddalwar
- Keck Medical CenterDepartment of RadiologyUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - David John Goodenough
- Department of RadiologyGeorge Washington UniversityWashingtonDistrict of ColumbiaUSA
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Varghese BA, Cen SY, Jensen K, Levy J, Andersen HK, Schulz A, Lei X, Duddalwar VA, Goodenough DJ. Technical and clinical considerations of a physical liver phantom for CT radiomics analysis. J Appl Clin Med Phys 2024; 25:e14309. [PMID: 38386922 PMCID: PMC11005983 DOI: 10.1002/acm2.14309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 01/17/2024] [Accepted: 02/03/2024] [Indexed: 02/24/2024] Open
Abstract
OBJECTIVE This study identifies key characteristics to help build a physical liver computed tomography (CT) phantom for radiomics harmonization; particularly, the higher-order texture metrics. MATERIALS AND METHODS CT scans of a radiomics phantom comprising of 18 novel 3D printed inserts with varying size, shape, and material combinations were acquired on a 64-slice CT scanner (Brilliance 64, Philips Healthcare). The images were acquired at 120 kV, 250 mAs, CTDIvol of 16.36 mGy, 2 mm slice thickness, and iterative noise-reduction reconstruction (iDose, Philips Healthcare, Andover, MA). Radiomics analysis was performed using the Cancer Imaging Phenomics Toolkit (CaPTk), following automated segmentation of 3D regions of interest (ROI) of the 18 inserts. The findings were compared to three additional ROI obtained of an anthropomorphic liver phantom, a patient liver CT scan, and a water phantom, at comparable imaging settings. Percentage difference in radiomic metrics values between phantom and tissue was used to assess the biological equivalency and <10% was used to claim equivalent. RESULTS The HU for all 18 ROI from the phantom ranged from -30 to 120 which is within clinically observed HU range of the liver, showing that our phantom material (T3-6B) is representative of biological CT tissue densities (liver) with >50% radiomic features having <10% difference from liver tissue. Based on the assessment of the Neighborhood Gray Tone Difference Matrix (NGTDM) metrics it is evident that the water phantom ROI show extreme values compared to the ROIs from the phantom. This result may further reinforce the difference between a structureless quantity such as water HU values and tissue HU values found in liver. CONCLUSION The 3-D printed patterns of the constructed radiomics phantom cover a wide span of liver tissue textures seen in CT images. Using our results, texture metrics can be selectively harmonized to establish clinically relevant and reliable radiomics panels.
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Affiliation(s)
- Bino Abel Varghese
- Department of RadiologyKeck Medical CenterUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Steven Yong Cen
- Department of RadiologyKeck Medical CenterUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Kristin Jensen
- Department of Physics and Computational RadiologyOslo University HospitalOsloNorway
| | | | | | - Anselm Schulz
- Department of Radiology and Nuclear MedicineOslo University HospitalOsloNorway
| | - Xiaomeng Lei
- Department of RadiologyKeck Medical CenterUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Vinay Anant Duddalwar
- Department of RadiologyKeck Medical CenterUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
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Kirakosian R, Möllenbrink L, Zamore G, Kaptchuk TJ, Jensen K. Heresy, witchcraft, Jean Gerson, scepticism and the use of placebo controls. J R Soc Med 2024; 117:36-41. [PMID: 37991475 PMCID: PMC10858716 DOI: 10.1177/01410768231207260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023] Open
Affiliation(s)
- R Kirakosian
- Germanistische Mediävistik, Albert-Ludwigs-Universität Freiburg, 79085, Germany
| | - L Möllenbrink
- Germanistisches Seminar, Universität Heidelberg, 69117 Heidelberg, Germany
| | - G Zamore
- Faculty of History, University of Cambridge, Cambridge, CB3 9EF, UK
| | - T J Kaptchuk
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - K Jensen
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm 17176, Sweden
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Friborg J, Jensen K, Eriksen JG, Samsøe E, Maare C, Farhadi M, Sibolt P, Nielsen M, Andersen M, Holm AIS, Skyt P, Smulders B, Johansen J, Overgaard J, Grau C, Hansen CR. Considerations for study design in the DAHANCA 35 trial of protons versus photons for head and neck cancer. Radiother Oncol 2024; 190:109958. [PMID: 37871751 DOI: 10.1016/j.radonc.2023.109958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 08/10/2023] [Accepted: 09/26/2023] [Indexed: 10/25/2023]
Abstract
Proton radiotherapy offers a dosimetric advantage compared to photon therapy in sparing normal tissue, but the clinical evidence for toxicity reductions in the treatment of head and neck cancer is limited. The Danish Head and Neck Cancer Group (DAHANCA) has initiated the DAHANCA 35 randomised trial to clarify the value of proton therapy (NCT04607694). The DAHANCA 35 trial is performed in an enriched population of patients selected by an anticipated benefit of proton therapy to reduce the risk of late dysphagia or xerostomia based on normal tissue complication probability (NTCP) modelling. We present our considerations on the trial design and a test of the selection procedure conducted before initiating the randomised study.
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Affiliation(s)
- J Friborg
- Danish Center of Particle Therapy, Aarhus University Hospital, Denmark; Department of Oncology, Rigshospitalet, Denmark. %
| | - K Jensen
- Danish Center of Particle Therapy, Aarhus University Hospital, Denmark
| | - J G Eriksen
- Department of Oncology, Aarhus University Hospital, Denmark; Aarhus University Hospital, Department of Experimental Clinical Oncology, Denmark
| | - E Samsøe
- Department of Oncology, Zealand University Hospital Næstved, Denmark
| | - C Maare
- Department of Oncology, Copenhagen University Hospital - Herlev and Gentofte, Denmark
| | - M Farhadi
- Department of Oncology, Zealand University Hospital Næstved, Denmark
| | - P Sibolt
- Department of Oncology, Copenhagen University Hospital - Herlev and Gentofte, Denmark
| | - M Nielsen
- Department of Oncology, Aalborg University Hospital, Denmark
| | - M Andersen
- Department of Oncology, Aalborg University Hospital, Denmark
| | - A I S Holm
- Department of Oncology, Aarhus University Hospital, Denmark
| | - P Skyt
- Danish Center of Particle Therapy, Aarhus University Hospital, Denmark
| | - B Smulders
- Danish Center of Particle Therapy, Aarhus University Hospital, Denmark; Department of Oncology, Rigshospitalet, Denmark
| | - J Johansen
- Department of Oncology, Odense University Hospital, Denmark
| | - J Overgaard
- Aarhus University Hospital, Department of Experimental Clinical Oncology, Denmark
| | - C Grau
- Danish Center of Particle Therapy, Aarhus University Hospital, Denmark
| | - C R Hansen
- Danish Center of Particle Therapy, Aarhus University Hospital, Denmark; Department of Oncology, Odense University Hospital, Denmark; Institute of Clinical Research, University of Southern Denmark, Denmark
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Ge TJ, Roquero DM, Holton GH, Mach KE, Prado K, Lau H, Jensen K, Chang TC, Conti S, Sheth K, Wang SX, Liao JC. A magnetic hydrogel for the efficient retrieval of kidney stone fragments during ureteroscopy. Nat Commun 2023; 14:3711. [PMID: 37349287 PMCID: PMC10287666 DOI: 10.1038/s41467-023-38936-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 05/23/2023] [Indexed: 06/24/2023] Open
Abstract
Only 60-75% of conventional kidney stone surgeries achieve complete stone-free status. Up to 30% of patients with residual fragments <2 mm in size experience subsequent stone-related complications. Here we demonstrate a stone retrieval technology in which fragments are rendered magnetizable with a magnetic hydrogel so that they can be easily retrieved with a simple magnetic tool. The magnetic hydrogel facilitates robust in vitro capture of stone fragments of clinically relevant sizes and compositions. The hydrogel components exhibit no cytotoxicity in cell culture and only superficial effects on ex vivo human urothelium and in vivo mouse bladders. Furthermore, the hydrogel demonstrates antimicrobial activity against common uropathogens on par with that of common antibiotics. By enabling the efficient retrieval of kidney stone fragments, our method can lead to improved stone-free rates and patient outcomes.
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Affiliation(s)
- T Jessie Ge
- Department of Urology, Stanford University, Stanford, CA, 94305, USA
- Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, 94304, USA
| | - Daniel Massana Roquero
- Department of Urology, Stanford University, Stanford, CA, 94305, USA
- Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, 94304, USA
| | - Grace H Holton
- Department of Urology, Stanford University, Stanford, CA, 94305, USA
| | - Kathleen E Mach
- Department of Urology, Stanford University, Stanford, CA, 94305, USA
- Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, 94304, USA
| | - Kris Prado
- Department of Urology, Stanford University, Stanford, CA, 94305, USA
| | - Hubert Lau
- Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, 94304, USA
- Department of Pathology, Stanford University, Stanford, CA, 94305, USA
| | - Kristin Jensen
- Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, 94304, USA
- Department of Pathology, Stanford University, Stanford, CA, 94305, USA
| | - Timothy C Chang
- Department of Urology, Stanford University, Stanford, CA, 94305, USA
- Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, 94304, USA
| | - Simon Conti
- Department of Urology, Stanford University, Stanford, CA, 94305, USA
| | - Kunj Sheth
- Department of Urology, Stanford University, Stanford, CA, 94305, USA
| | - Shan X Wang
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Joseph C Liao
- Department of Urology, Stanford University, Stanford, CA, 94305, USA.
- Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, 94304, USA.
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Sogge MN, Tormodsrud V, Hagen TW, Riktor M, Jensen K. A COMPARISON OF SPECTRAL ENERGY MODES ACROSS DIFFERENT CT VENDORS. Phys Med 2022. [DOI: 10.1016/s1120-1797(22)02194-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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Rushton LM, Pyragius T, Meraki A, Elson L, Jensen K. Unshielded portable optically pumped magnetometer for the remote detection of conductive objects using eddy current measurements. Rev Sci Instrum 2022; 93:125103. [PMID: 36586912 DOI: 10.1063/5.0102402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 11/06/2022] [Indexed: 06/17/2023]
Abstract
Electrically conductive objects can be detected using the principle of electromagnetic induction, where a primary oscillating magnetic field induces eddy currents in the object, which in turn produce a secondary magnetic field that can be measured with a magnetometer. We have developed a portable radio-frequency optically pumped magnetometer (RF OPM) working in unshielded conditions with sub-pT/Hz magnetic field sensitivity when used for the detection of small oscillating magnetic fields, setting a new benchmark for the sensitivity of a portable RF OPM in unshielded conditions. Using this OPM, we have detected the induced magnetic field from aluminum disks with diameters as small as 1.5 cm and with the disks being ∼25 cm from both the excitation coil and the magnetometer. When used for eddy current detection, our magnetometer achieves a sensitivity of a 2-6 pT/Hz. We have also detected a moving aluminum disk using our RF OPM and analyzed the magnetometer signals, which depend on the position of the disk, illustrating the potential of high sensitivity RF OPMs for remote sensing applications.
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Affiliation(s)
- L M Rushton
- School of Physics and Astronomy, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - T Pyragius
- School of Physics and Astronomy, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - A Meraki
- School of Physics and Astronomy, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - L Elson
- School of Physics and Astronomy, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - K Jensen
- School of Physics and Astronomy, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
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Jensen K, Ramzan A, Schulz A, Njøstad T, Andersen H. LESION DETECTION WITH SPECTRAL IMAGING AND DEEP LEARNING IMAGE RECONSTRUCTION. Phys Med 2022. [DOI: 10.1016/s1120-1797(22)02177-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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Stanford NT, McAllister J, Gibbons M, Jensen K, Lee H, Rothkopf A, Jackson R, Farr M, Addonizio L, Law S, Lee T, Richmond M, Zuckerman W. Quality of life and lifetime achievement in adult survivors of pediatric heart transplant. Pediatr Transplant 2022; 26:e14370. [PMID: 35950955 DOI: 10.1111/petr.14370] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 07/06/2022] [Accepted: 07/14/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Survival in pediatric heart transplantation has improved since the first successful transplant over 35 years ago leading to increasing numbers of patients entering adulthood. We sought to examine quality of life and various lifetime achievements in our institutional population of long-term adult survivors of pediatric heart transplant. METHODS Participants ≥18 years of age who received a heart transplant as a pediatric patient (<18 years old), and who have survived ≥10 years post-transplant, completed two self-report surveys: (1) Ferrans and Powers QLI cardiac version which reports a measure of life satisfaction with a range of 0 (very dissatisfied) to 1 (very satisfied); and (2) CHONY Pediatric Heart Transplant Life Achievement Survey to examine lifetime achievement. RESULTS Sixty-two and sixty-five participants completed the Ferrans and Powers QLI cardiac version and CHONY Pediatric Heart Transplant Life Achievement Survey. The mean overall QLI was 0.75 ± 0.14 with the most satisfaction in the family domain. QLI scores were analyzed by age at initial transplant, gender, indication for transplant, and whether patients currently followed by pediatric or adult providers, with no statistically significant differences noted. Seventy-two percent of participants demonstrated stable employment or schooling. Around thirty percent of participants showed the ability to reach academic milestones including college and post-graduate education and ten percent to start their own families. CONCLUSIONS Our cohort of long-term adult survivors of pediatric heart transplant report a quality of life with scores thought to be reflective of a satisfactory quality of life, and many demonstrate achievement of major life milestones.
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Affiliation(s)
- Nicole Toscana Stanford
- Division of Pediatric Cardiology, Columbia University Medical Center, New York, New York, USA
| | - Jennie McAllister
- Division of Pediatric Cardiology, Columbia University Medical Center, New York, New York, USA
| | - Meredith Gibbons
- Division of Pediatric Cardiology, Columbia University Medical Center, New York, New York, USA
| | - Kristin Jensen
- Division of Pediatric Cardiology, Columbia University Medical Center, New York, New York, USA
| | - Hannah Lee
- Division of Pediatric Cardiology, Columbia University Medical Center, New York, New York, USA
| | - Amy Rothkopf
- Division of Pediatric Cardiology, Columbia University Medical Center, New York, New York, USA
| | - Ruslana Jackson
- Division of Cardiology, Columbia University Medical Center, New York, New York, USA
| | - Maryjane Farr
- Division of Cardiology, Columbia University Medical Center, New York, New York, USA
| | - Linda Addonizio
- Division of Pediatric Cardiology, Columbia University Medical Center, New York, New York, USA
| | - Sabrina Law
- Division of Pediatric Cardiology, Columbia University Medical Center, New York, New York, USA
| | - Teresa Lee
- Division of Pediatric Cardiology, Columbia University Medical Center, New York, New York, USA
| | - Marc Richmond
- Division of Pediatric Cardiology, Columbia University Medical Center, New York, New York, USA
| | - Warren Zuckerman
- Division of Pediatric Cardiology, Columbia University Medical Center, New York, New York, USA
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Pittkowski R, Stoian D, Arenz M, Jensen K. Understanding the material formation of high-entropy alloy nanoparticles: in situ study using coupled X-ray diffraction/ absorption spectroscopy. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322094566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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Argota-Perez R, Sharma MB, Elstrøm UV, Møller DS, Grau C, Jensen K, Holm AIS, Korreman SS. Dose and robustness comparison of nominal, daily and accumulated doses for photon and proton treatment of sinonasal cancer. Radiother Oncol 2022; 173:102-108. [PMID: 35667574 DOI: 10.1016/j.radonc.2022.05.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 05/30/2022] [Accepted: 05/31/2022] [Indexed: 11/16/2022]
Abstract
INTRODUCTION The aim was to evaluate and compare the dosimetric effect and robustness towards day-to-day anatomical and setup variations in the delivered dose for photon and proton treatments of sinonasal cancer (SNC) patients. MATERIALS AND METHODS Photon (VMAT) and proton (IMPT) plans were optimized retrospectively for 24 SNC patients. Synthetic CTs (synCT) were obtained by deforming the planning CT (pCT) to the anatomy of every daily cone-beam CT. Both VMAT and IMPT plans were recalculated on the synCTs. The recalculated daily dose was accumulated over the whole treatment on the pCT. Target coverage and dose to organs and risk (OARs) were evaluated for all patients for the nominal, daily and accumulated dose distribution. RESULTS In general, dose to OARs farther away from the target, including brain, chiasm and contralateral optic nerve, was lower for proton plans than photon plans. Whereas, OARs in proximity of the target received a lower dose for photon plans. For proton plans, the target coverage (volume of CTV receiving 95% of prescribed dose), V95%, fell below 99% for 9/24 patients in one or more fractions. For photon plans, 4/24 patients had one or more fractions where V95% fell below 99%. For accumulated doses, V95% was below 99% only in two cases, but above 98% for all patients. CONCLUSION Photon and proton treatment have different strengths regarding OAR sparing. The robustness was high for both treatment modalities. Patient selection for either proton or photon radiation therapy of SNC patients should be based on a case-by-case comparison.
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Affiliation(s)
- R Argota-Perez
- Department of Oncology, Aarhus University Hospital, Denmark
| | - M B Sharma
- Department of Oncology, Aarhus University Hospital, Denmark
| | - U V Elstrøm
- Danish Center for Particle Therapy, Aarhus University Hospital, Denmark
| | - D S Møller
- Department of Oncology, Aarhus University Hospital, Denmark
| | - C Grau
- Department of Oncology, Aarhus University Hospital, Denmark; Danish Center for Particle Therapy, Aarhus University Hospital, Denmark; Department of Clinical Medicine, Aarhus University, Denmark
| | - K Jensen
- Danish Center for Particle Therapy, Aarhus University Hospital, Denmark
| | - A I S Holm
- Department of Oncology, Aarhus University Hospital, Denmark.
| | - S S Korreman
- Department of Oncology, Aarhus University Hospital, Denmark; Danish Center for Particle Therapy, Aarhus University Hospital, Denmark; Department of Clinical Medicine, Aarhus University, Denmark
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Wei MT, Louie CY, Chen Y, Pan JY, Quan SY, Wong R, Brown R, Clark M, Jensen K, Lau H, Friedland S. Randomized controlled trial investigating use of submucosal injection of EverLift™ in rates of complete resection of non-pedunculated 4-9 mm polyps. Int J Colorectal Dis 2022; 37:1273-1279. [PMID: 35507047 DOI: 10.1007/s00384-022-04136-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/23/2022] [Indexed: 02/04/2023]
Abstract
INTRODUCTION Currently, cold snare polypectomy (CSP) without submucosal injection is recommended for removing polyps < 10 mm. Use of viscous submucosal agents has not been previously evaluated in CSP. We investigate the potential role of EverLift™ (GI Supply, Pennsylvania) in CSP. METHODS The study is a single-center prospective randomized non-inferiority clinical trial evaluating CSP of non-pedunculated 4-9 mm polyps, with or without submucosal injection of EverLift™. Patients 18-80 years of age presenting for colonoscopy were recruited. Eligible polyps underwent block randomization to CSP with or without EverLift™. Following CSP, two biopsies were performed at the CSP site margin. The primary non-inferiority outcome was complete resection rate, defined by absence of residual polyp in the margin biopsies (non-inferiority margin -10%). RESULTS A total of 291 eligible polyps underwent CSP, with 142 removed using EverLift™. There was similar polyp size and distribution of pathology between the two groups. Overall, there was a low rate of positive margins with (1.4%) or without submucosal injection (2.8%), with no significant difference in complete resection (difference 1.28%, 95% CI: -2.66 to 5.42%), demonstrating non-inferiority of EverLift™ injection. Use of EverLift™ significantly increased CSP time (109.8 vs 38.8 s, p < 0.0001) and frequency of use of hemostatic clips (13.4 vs 3.6%, p = 0.002). CONCLUSION Submucosal injection of EverLift™ was non-inferior to CSP of 4-9 mm polyps without injection and increased time for resection as well as use of hemostatic clips to control acute bleeding. Our results suggest that polypectomy of 4-9 mm polyps can be safely performed without submucosal injection of EverLift™.
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Affiliation(s)
- Mike T Wei
- Stanford University, Stanford, CA, USA. .,Veterans Affairs Palo Alto Health System, Palo Alto, CA, USA.
| | - Christine Y Louie
- Stanford University, Stanford, CA, USA.,Veterans Affairs Palo Alto Health System, Palo Alto, CA, USA
| | - Yu Chen
- Stanford University, Stanford, CA, USA.,Veterans Affairs Palo Alto Health System, Palo Alto, CA, USA
| | - Jennifer Y Pan
- Stanford University, Stanford, CA, USA.,Veterans Affairs Palo Alto Health System, Palo Alto, CA, USA
| | - Susan Y Quan
- Stanford University, Stanford, CA, USA.,Veterans Affairs Palo Alto Health System, Palo Alto, CA, USA
| | - Robert Wong
- Stanford University, Stanford, CA, USA.,Veterans Affairs Palo Alto Health System, Palo Alto, CA, USA
| | - Ryanne Brown
- Stanford University, Stanford, CA, USA.,Veterans Affairs Palo Alto Health System, Palo Alto, CA, USA
| | - Melissa Clark
- Stanford University, Stanford, CA, USA.,Veterans Affairs Palo Alto Health System, Palo Alto, CA, USA
| | - Kristin Jensen
- Stanford University, Stanford, CA, USA.,Veterans Affairs Palo Alto Health System, Palo Alto, CA, USA
| | - Hubert Lau
- Stanford University, Stanford, CA, USA.,Veterans Affairs Palo Alto Health System, Palo Alto, CA, USA
| | - Shai Friedland
- Stanford University, Stanford, CA, USA.,Veterans Affairs Palo Alto Health System, Palo Alto, CA, USA
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Caira JN, Jensen K. Diversity and phylogenetic relationships of 'tetraphyllidean' Clade 3 (Cestoda) based on new material from orectolobiform sharks in Australia and Taiwan. Folia Parasitol (Praha) 2022; 69. [DOI: 10.14411/fp.2022.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 03/03/2022] [Indexed: 11/19/2022]
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15
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Sojat Tarp I, Taasti V, Jensen M, Vestergaard A, Jensen K. PO-1502 The clinical benefit of range uncertainty reduction in robust optimization for proton therapy. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03466-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Nowicka-Matus K, Friborg J, Hansen C, Andersen E, Bernsdorf M, Elstrøm U, Farhadi M, Grau C, Eriksen J, Johansen J, Nielsen M, Petersen J, Samsøe E, Sibolt P, Smulders B, Jensen K. OC-0089 Acute toxicities in proton therapy of head-neck cancer – a matched analysis of DAHANCA 35 pilot data. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02465-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Elstroem U, Noerrevang O, Jensen K. PO-1727 Robust optimization for IMPT in head and neck cancer with coupled vs. uncoupled scenarios. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03691-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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18
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Vestergaard M, Jensen K, Juul-Kristensen B. Hybrid high-intensity interval training using functional electrical stimulation leg cycling and arm ski ergometer for people with spinal cord injuries: a feasibility study. Pilot Feasibility Stud 2022; 8:43. [PMID: 35193705 PMCID: PMC8862540 DOI: 10.1186/s40814-022-00997-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 01/31/2022] [Indexed: 11/22/2022] Open
Abstract
Aim The aim was to assess safety and feasibility of Hybrid High-Intensity Interval Training (HIIT) using Functional Electrical Stimulation (FES) leg cycling and arm ski ergometer in people with Spinal Cord Injuries (SCI). Method Eight outpatients (mean age 42.8 years; 7 men) with stable SCI paraplegia (mean 14.5 years since injury) participated in hybrid HIIT (90% peak watts; 4 × 4–min intervals), three times a week (over 8 weeks). Primary outcomes were Adverse Events (AE), participant acceptability, shoulder pain, training intensity (% peak watts), and attendance. Secondary outcomes were effect on peak oxygen uptake (VO2peak) during FES hybrid poling, mean watts, self-reported leisure time physical activity, quality of life, and fatigue. Results No serious AE occurred; acceptability with the training modality was high, while shoulder pain increased by 9% (SD 95.2). During training, 50% of the participants reached > 90% peak watts during the intervals, three with the legs (FES cycle) and one with the arms (Ski-Erg). Overall, mean training intensity (% peak watts) was 92% (SD 18.9) for legs and 82% (SD 10.3) for arms. Proportion of fulfilled training minutes was 82% (range 36–100%); one participant dropped out after 6 weeks due to back pain. Mean VO2peak increased by 17% (SD 17.5). Participants reported increased leisure time physical activity and health-related quality of life, besides reduced fatigue. Conclusion Hybrid HIIT was safe for people with SCI paraplegia. The majority of the criteria for feasibility were met with acceptable attendance rate, limited drop out, participants enjoyed training, and increased VO2peak and mean watts. However, the intensity of 90% peak watts was reached by < 60% of the participants despite high RPE ratings during training. The method of measuring and calculating intensity needs to be studied further before a study using this HIIT protocol is undertaken. Trial registration Clinicaltrials.gov, NCT04211311, registered 12 December 2019 retrospectively registered Supplementary Information The online version contains supplementary material available at 10.1186/s40814-022-00997-2.
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Jensen K, Caira JN. Phylogenetic analysis and diversity of peculiar new lecanicephalidean tapeworms (Eniochobothriidae) from cownose rays across the globe. INVERTEBR SYST 2022. [DOI: 10.1071/is22018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Njølstad T, Jensen K, Dybwad A, Salvesen Ø, Andersen HK, Schulz A. Low-contrast detectability and potential for radiation dose reduction using deep learning image reconstruction—A 20-reader study on a semi-anthropomorphic liver phantom. Eur J Radiol Open 2022; 9:100418. [PMID: 35391822 PMCID: PMC8980706 DOI: 10.1016/j.ejro.2022.100418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 03/21/2022] [Accepted: 03/23/2022] [Indexed: 11/09/2022] Open
Abstract
Background A novel deep learning image reconstruction (DLIR) algorithm for CT has recently been clinically approved. Purpose To assess low-contrast detectability and dose reduction potential for CT images reconstructed with the DLIR algorithm and compare with filtered back projection (FBP) and hybrid iterative reconstruction (IR). Material and methods A customized upper-abdomen phantom containing four cylindrical liver inserts with low-contrast lesions was scanned at CT dose indexes of 5, 10, 15, 20 and 25 mGy. Images were reconstructed with FBP, 50% hybrid IR (IR50), and DLIR of low strength (DLL), medium strength (DLM) and high strength (DLH). Detectability was assessed by 20 independent readers using a two-alternative forced choice approach. Dose reduction potential was estimated separately for each strength of DLIR using a fitted model, with the detectability performance of FBP and IR50 as reference. Results For the investigated dose levels of 5 and 10 mGy, DLM improved detectability compared to FBP by 5.8 and 6.9 percentage points (p.p.), and DLH improved detectability by 9.6 and 12.3 p.p., respectively (all p < .007). With IR50 as reference, DLH improved detectability by 5.2 and 9.8 p.p. for the 5 and 10 mGy dose level, respectively (p < .03). With respect to this low-contrast detectability task, average dose reduction potential relative to FBP was estimated to 39% for DLM and 55% for DLH. Relative to IR50, average dose reduction potential was estimated to 21% for DLM and 42% for DLH. Conclusions: Low-contrast detectability performance is improved when applying a DLIR algorithm, with potential for radiation dose reduction. Deep learning image reconstruction improves low-contrast detectability in CT. Performance improved with increasing strength of deep learning image reconstruction. Results suggest potential for CT radiation dose reduction.
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21
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Hansen C, Friborg J, Skyt P, Smulders B, Sibolt P, Nielsen M, Samsøe E, Petersen J, Johansen J, Zukauskaite R, Andersen E, Andersen M, Farhadi M, Eriksen J, Overgaard J, Grau C, Jensen K. Photon-proton dose plan comparison in the pilot phase of the randomized clinical DAHANCA 35 trial. Phys Med 2021. [DOI: 10.1016/s1120-1797(22)00106-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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22
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Godt JC, Johansen CK, Martinsen ACT, Schulz A, Brøgger HM, Jensen K, Stray-Pedersen A, Dormagen JB. Iterative reconstruction improves image quality and reduces radiation dose in trauma protocols; A human cadaver study. Acta Radiol Open 2021; 10:20584601211055389. [PMID: 34840815 PMCID: PMC8619783 DOI: 10.1177/20584601211055389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 10/07/2021] [Indexed: 12/02/2022] Open
Abstract
Background Radiation-related cancer risk is an object of concern in CT of trauma patients, as these represent a young population. Different radiation reducing methods, including iterative reconstruction (IR), and spilt bolus techniques have been introduced in the recent years in different large scale trauma centers. Purpose To compare image quality in human cadaver exposed to thoracoabdominal computed tomography using IR and standard filtered back-projection (FBP) at different dose levels. Material and methods Ten cadavers were scanned at full dose and a dose reduction in CTDIvol of 5 mGy (low dose 1) and 7.5 mGy (low dose 2) on a Siemens Definition Flash 128-slice computed tomography scanner. Low dose images were reconstructed with FBP and Sinogram affirmed iterative reconstruction (SAFIRE) level 2 and 4. Quantitative image quality was analyzed by comparison of contrast-to-noise ratio (CNR) and signal-to-noise ratio (SNR). Qualitative image quality was evaluated by use of visual grading regression (VGR) by four radiologists. Results Readers preferred SAFIRE reconstructed images over FBP at a dose reduction of 40% (low dose 1) and 56% (low dose 2), with significant difference in overall impression of image quality. CNR and SNR showed significant improvement for images reconstructed with SAFIRE 2 and 4 compared to FBP at both low dose levels. Conclusions Iterative image reconstruction, SAFIRE 2 and 4, resulted in equal or improved image quality at a dose reduction of up to 56% compared to full dose FBP and may be used a strong radiation reduction tool in the young trauma population.
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Affiliation(s)
- Johannes Clemens Godt
- Department of Radiology and Nuclear Medicine, Oslo University Hospital Ullevål, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Cathrine K Johansen
- Department of Radiology and Nuclear Medicine, Oslo University Hospital Ullevål, Oslo, Norway
| | - Anne Catrine T Martinsen
- The Research Department, Sunnaas Rehabilitation Hospital, Norway.,Faculty of Health Sciences, Oslo Metropolitan University, Oslo, Norway.,Department of Diagnostic Physics, Oslo University Hospital, Oslo, Norway
| | - Anselm Schulz
- Department of Radiology and Nuclear Medicine, Oslo University Hospital Ullevål, Oslo, Norway.,Department of Diagnostic Physics, Oslo University Hospital, Oslo, Norway
| | - Helga M Brøgger
- Department of Radiology and Nuclear Medicine, Oslo University Hospital Ullevål, Oslo, Norway
| | - Kristin Jensen
- Department of Diagnostic Physics, Oslo University Hospital, Oslo, Norway
| | - Arne Stray-Pedersen
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Department of Forensic Sciences, Oslo University Hospital, Oslo, Norway
| | - Johann Baptist Dormagen
- Department of Radiology and Nuclear Medicine, Oslo University Hospital Ullevål, Oslo, Norway
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Caira JN, Pickering M, Jensen K. Expanding known global biodiversity of Yamaguticestus (Cestoda: Phyllobothriidea) parasitizing catsharks (Pentanchidae and Scyliorhinidae). SYST BIODIVERS 2021. [DOI: 10.1080/14772000.2021.1946617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- J. N. Caira
- Department of Ecology & Evolutionary Biology, University of Connecticut, 75 N. Eagleville Rd, Storrs, CT, 06269-3043, USA
| | - M. Pickering
- Department of Biological Sciences, Meredith College, 3800 Hillsborough St, Raleigh, NC, 27607, USA
| | - K. Jensen
- Department of Ecology & Evolutionary Biology and the Biodiversity Institute, University of Kansas, 1200 Sunnyside Ave, Lawrence, KS, 66045, USA
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Argota Perez R, Sharma M, Elstroem U, Moeller D, Grau C, Jensen K, Korreman S, Holm A. OC-0203 Nominal, daily and accumulated target coverage for photon and proton treatment of sinonasal cancer. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06818-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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25
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Harsaker V, Jensen K, Andersen HK, Martinsen AC. Quantitative benchmarking of iodine imaging for two CT spectral imaging technologies: a phantom study. Eur Radiol Exp 2021; 5:24. [PMID: 34159477 PMCID: PMC8219825 DOI: 10.1186/s41747-021-00224-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 05/20/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND The aim of this study was to quantitatively benchmark iodine imaging across specific virtual monoenergetic energy levels, iodine maps and virtual non-contrast images with different phantom sizes and iodine concentrations, using a rapid switching dual-energy CT (DECT) and a dual source DECT, in order to investigate accuracy and potential differences between the technologies. METHODS Solutions of iodine contrast (10, 20, 30, 50, and 100 mg/mL), sterile water and saline were scanned in a phantom on a rapid switching single-source and dual-source DECT scanners from two different vendors. The phantom was equipped with polyurethane rings simulating three body sizes. The datasets were reconstructed in virtual monoenergetic energy levels (70, 80, 90, 100, 110, 120, 130, and 140 keV), virtual non-contrast images and iodine maps. HU and iodine concentrations were measured by placing ROIs in the iodine solutions. RESULTS The iodine concentrations were reproduced with a high degree of accuracy for the single-source DECT (1.8-9.0%), showing a slight dependence on phantom size. The dual source DECT technique showed deviant values (error -33.8 to 12.0%) for high concentrations. In relation to the virtual non-contrast measurements, the images from both vendors were affected by the iodine concentration and phantom size (-127.8 to 539.1 HU). Phantom size did not affect the calculated monoenergetic attenuation values, but the attenuation values varied between the scanners. CONCLUSIONS Quantitative measurements of post-processed images are dependent on the concentration of iodine, the phantom size and different technologies. However, our study indicates that the iodine maps are reliable for quantification of iodine.
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Affiliation(s)
- Vanja Harsaker
- Department of Life Sciences and Health, Oslo Metropolitan University, Box 4, St. Olavs plass, 0130, Oslo, Norway.
| | - Kristin Jensen
- The Department of Diagnostic Physics, Oslo University Hospital, Bygg 20, Gaustad Sykehus, Box 4959 Nydalen, 0424, Oslo, Norway
| | - Hilde Kjernlie Andersen
- The Department of Diagnostic Physics, Oslo University Hospital, Bygg 20, Gaustad Sykehus, Box 4959 Nydalen, 0424, Oslo, Norway
| | - Anne Catrine Martinsen
- Department of Life Sciences and Health, Oslo Metropolitan University, Box 4, St. Olavs plass, 0130, Oslo, Norway
- Sunnaas Rehabilitation Hospital, Bjornemyrvn. 11, 1453, Bjornemyr, Norway
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Sharma M, Argota Perez R, Holm A, Korreman S, Jensen K, Elstrøm U, Grau C. Air variability in maxillary sinus during radiotherapy for sinonasal carcinoma. Clin Transl Radiat Oncol 2021; 27:36-43. [PMID: 33490653 PMCID: PMC7809099 DOI: 10.1016/j.ctro.2020.12.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 12/26/2020] [Accepted: 12/28/2020] [Indexed: 11/30/2022] Open
Abstract
INTRODUCTION The aim was to characterise patterns and predictability of aeration changes in the ipsilateral maxillary sinus during intensity-modulated radiotherapy (IMRT) for sinonasal cancer (SNC), and in a sample evaluate the dosimetric effects of aeration changes for both photon and proton therapy. MATERIALS AND METHODS The study included patients treated with IMRT for SNC in a single institution in 2009-2017. The volume of air in the ipsilateral maxillary sinus was recorded in 1578 daily cone beam computer tomography (CBCT) from 53 patients. Patterns of changing air volumes were categorised as 'stable', increasing', 'decreasing', or 'erratic'. For the prediction analysis, categorisation was performed based both on the entire treatment course and the first five fractions (F1-5). Photon and proton therapy plans were generated for four patients, the one from each category with the largest aeration variation. Synthetic CT images were generated for each CBCT and all plans were recalculated on the daily synthetic CTs. RESULTS The absolute volume of air varied considerably during the treatment course, ranging from 0 to 25.9 cm3. Changes within a single participant varied in the range of 0-18.7 cm3. In the categorisation of patterns, most patients had increasing aeration of the sinus. Generally, patterns of aeration could not be predicted from F1-5. Patients categorised as increasing in F1-5 had the best prediction, with 78% predicted correctly as increasing for the entire treatment course. The numeric correlation coefficients for target coverage and air volume were low for 3/4 scenarios (photons 0.03-0.23, protons 0.26-0.48). No straightforward correlation between the dosimetric effect and the volume changes could be detected in the sample test of four patients for neither photon nor proton therapy. CONCLUSION The variation of aeration was large and unpredictable. No clear dosimetric consequences of the aeration variation were evident for neither IMRT nor proton therapy for the patients investigated.
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Affiliation(s)
- M.B. Sharma
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
| | - R. Argota Perez
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
| | - A.I.S. Holm
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
| | - S.S. Korreman
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
- Danish Center for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - K. Jensen
- Danish Center for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
| | - U.V. Elstrøm
- Danish Center for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
| | - C. Grau
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
- Danish Center for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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Jensen NH, Sze-Long Lo R, Hung K, Lorentzen M, Laugesen S, Posth S, Hansen S, Jensen K, Kellett J, Graham CA, Brabrand M. Thermographic visualization of facial vasoconstriction is associated with 30-day all-cause mortality in medical patients; prospective observational two-site cohort study. Acute Med 2021; 20:101-109. [PMID: 34190736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
INTRODUCTION Quick and reliable assessment of acute patients is required for accurate triage. The temperature gradient between core and peripheral temperature could possibly instantly provide information on circulatory status. METHODS Adult medical patients, who did not receive supplementary oxygen, attending two emergency departments, had a thermographic image taken on arrival. The association between 30-day mortality and gradients was tested using logistic regression. RESULTS 726 patients were studied, median age was 64 years and 14 (1.9%) died within 30 days. There was a significant association between mortality and temperature gradient, comparable to vital signs, age, and clinical intuition. CONCLUSION Temperature gradient between nose and eye had an acceptable discriminatory power for 30-day all-cause mortality.
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Affiliation(s)
- N H Jensen
- Department of Emergency Medicine, Hospital of South West Jutland, Esbjerg, Denmark
| | - R Sze-Long Lo
- Accident and Emergency Medicine Academic Unit, Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong SAR, China
| | - Kkc Hung
- Accident and Emergency Medicine Academic Unit, Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong SAR, China
| | - M Lorentzen
- Department of Emergency Medicine, Hospital of South West Jutland, Esbjerg, Denmark
| | - S Laugesen
- Department of Emergency Medicine, Odense University Hospital, Odense, Denmark
| | - S Posth
- Department of Emergency Medicine, Odense University Hospital, Odense, Denmark
| | - S Hansen
- Department of Emergency Medicine, Odense University Hospital, Odense, Denmark
| | - K Jensen
- Department of Emergency Medicine, Odense University Hospital, Odense, Denmark
| | - J Kellett
- Department of Emergency Medicine, Hospital of South West Jutland, Esbjerg, Denmark
| | - C A Graham
- Accident and Emergency Medicine Academic Unit, Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong SAR, China
| | - M Brabrand
- Department of Emergency Medicine, Hospital of South West Jutland, Esbjerg, Denmark
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Akyea-Larbi KO, Tetteh MA, Martinsen ACT, Hasford F, Inkoom S, Jensen K. BENCHMARKING OF A NEW AUTOMATIC CT RADIATION DOSE CALCULATOR. Radiat Prot Dosimetry 2020; 191:361-368. [PMID: 33151301 DOI: 10.1093/rpd/ncaa167] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/03/2020] [Accepted: 09/23/2020] [Indexed: 06/11/2023]
Abstract
Information on patient radiation dose is essential to meet the radiation protection regulations and the demands of dose optimization. Vendors have developed different tools for patient dose assessment for radiological purposes. In this study, estimated effective doses derived from a new image-based software tool (DoseWatch, GE Healthcare) was benchmarked against the corresponding doses from a dose calculator (CT-Expo, SASCRAD) and a conversion coefficient method. Dose data from 150 adult patients (66 male and 84 female), who underwent CT head, abdominopelvic or chest examinations, were retrospectively collected using DoseWatch. Effective dose estimated by DoseWatch was significantly lower than that of CT-Expo and DLP-E (k) (p ≤ 0.001). For the organ doses, DoseWatch resulted in lower dose than CT-Expo for all the organs with the exception of testis (p ≤ 001) and eye lenses (p ≤ 0.026).
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Affiliation(s)
- Kofi Okyere Akyea-Larbi
- Department of Medical Physics, School of Nuclear and Allied Sciences, University of Ghana, LG 25 Legon, Accra, Ghana
- Department of Physics, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway
| | - Mercy Afadzi Tetteh
- Department of Physics, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway
- Department of Diagnostic Physics, Oslo University Hospital, 0424 Oslo, Norway
| | - Anne Catrine T Martinsen
- Department of Diagnostic Physics, Oslo University Hospital, 0424 Oslo, Norway
- Faculty of Health sciences, Oslo Metropolitan University, N-0130 Oslo, Norway
| | - Francis Hasford
- Department of Medical Physics, School of Nuclear and Allied Sciences, University of Ghana, LG 25 Legon, Accra, Ghana
- Radiological and Medical Sciences Research Institute, Ghana Atomic Energy Commission, LG 80 Legon, Accra, Ghana
| | - Stephen Inkoom
- Department of Medical Physics, School of Nuclear and Allied Sciences, University of Ghana, LG 25 Legon, Accra, Ghana
- Radiation Protection Institute, Ghana Atomic Energy Commission, LG 80 Legon, Accra, Ghana
| | - Kristin Jensen
- Department of Diagnostic Physics, Oslo University Hospital, 0424 Oslo, Norway
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Samsøe E, Jensen K, Hansen C, Skyt P, Friborg J, Smulders B, Bahij I, Schouboe A, Randers P, Vestergaard A. PO-1637: Strategy for adaptive proton therapy for patients with head and neck cancer. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)01655-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kaplan L, Hansen C, Jensen K, Friborg J, Samsøe E, Johansen J, Andersen M, Smulders B, Andersen E, Nielsen M, Eriksen J, Petersen J, Elstrøm U, Holm A, Skyt P, Vestergaard A, Lorenzen E, Nielsen M, Marseguerra R, Morthorst M, Grau C, Korreman S. OC-0107: Quantitative metrics to analyze variations and support best practices in head and neck dose plans. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00133-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Hansen C, Van den Bosch L, Van der Laan H, Friborg J, Jensen K, Samsøe E, Johnsen L, Zukauskaite R, Grau C, Maare C, Johansen J, Primdahl H, Bratland Å, Kristensen C, Andersen M, Eriksen J, Langendijk J, Overgaard J, Van der Schaaf A. OC-0575: Type 4 validation of dysphagia NTCP model for selection of HNC patients to the RCT, DAHANCA35. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00597-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Pries-Heje M, Hasselbalch R, Ihleman N, Gill S, Bruun N, Elming H, Jensen K, Oestergaard L, Helweg-Larsen J, Fosboel E, Koeber L, Toender N, Moser C, Iversen K, Bundgaard H. Hemoglobin level at stabilization is associated with long-term all-cause mortality in patients with left-sided endocarditis, a POET substudy. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
Left-sided infectious endocarditis (IE) has a high 1-year mortality. Anemia is a common finding in patients with IE, yet little is known about frequency, severity, and associated outcomes in this setting.
Purpose
To examine the relationship between Hemoglobin (Hgb) level measured at IE stabilization (time of randomization) in the Partial Oral versus intravenous Antibiotic Treatment of Endocarditis (POET) trial - and long-term all-cause mortality.
Methods
In the POET trial, 400 patients with left-sided IE were randomized, after medical and/or surgical stabilization, to conventional antibiotic treatment or partial oral treatment. Only non-surgically treated patients were considered in this study. Patients were divided by quartiles into four groups based on Hgb level at randomization.
Results
We examined 248 patients with non-surgically treated IE. Median time from diagnosis of IE to randomization was 14 days (IQ 12–19). At long-term follow-up (median 3.2 years, IQ 2.18–4.60), 71 patients had died (28.6%). Patients in the lowest quantile (Hgb ≤6.0 mmol) had a HR of 4.17 (95% CI 1.81–9.61, p<0.001) for death compared to patients in the highest quantile (Hgb >7.5 mmol/L). This association remained significant after multivariable adjustment for age, sex, renal disease, C-Reactive Protein, and Prosthetic heart valve (HR 2.69, 95% CI 1.11–6.50); p=0.028).
Conclusion
Low Hemoglobin level at stabilization in patients with IE was associated with an increased risk of long-term mortality. Whether intensified treatment of anemia in patients with IE could improve long-term outcome requires investigation.
Funding Acknowledgement
Type of funding source: Foundation. Main funding source(s): The Danish Heart Foundation, The Capital Regions Research Council
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Affiliation(s)
- M Pries-Heje
- Rigshospitalet - Copenhagen University Hospital, Department of Cardiology, Copenhagen, Denmark
| | | | - N Ihleman
- Rigshospitalet - Copenhagen University Hospital, Department of Cardiology, Copenhagen, Denmark
| | - S Gill
- Odense University Hospital, Department of Cardiology, Odense, Denmark
| | - N.E Bruun
- Zealand University Hospital, Department of Cardiology, Roskilde, Denmark
| | - H Elming
- Zealand University Hospital, Department of Cardiology, Roskilde, Denmark
| | - K Jensen
- Aarhus University Hospital, Department of Cardiology, Aarhus, Denmark
| | - L Oestergaard
- Rigshospitalet - Copenhagen University Hospital, Department of Cardiology, Copenhagen, Denmark
| | - J Helweg-Larsen
- Rigshospitalet - Copenhagen University Hospital, Department of Infectious Diseases, Copenhagen, Denmark
| | - E.L Fosboel
- Rigshospitalet - Copenhagen University Hospital, Department of Cardiology, Copenhagen, Denmark
| | - L Koeber
- Rigshospitalet - Copenhagen University Hospital, Department of Cardiology, Copenhagen, Denmark
| | - N Toender
- Hillerod Hospital, Department of Cardiology, Hillerod, Denmark
| | - C Moser
- Rigshospitalet - Copenhagen University Hospital, Department of Clinical Microbiology, Copenhagen, Denmark
| | - K Iversen
- Rigshospitalet - Copenhagen University Hospital, Department of Cardiology, Copenhagen, Denmark
| | - H Bundgaard
- Rigshospitalet - Copenhagen University Hospital, Department of Cardiology, Copenhagen, Denmark
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Jensen K, Hagemo G, Tingberg A, Steinfeldt-Reisse C, Mynarek GK, Rivero RJ, Fosse E, Martinsen AC. Evaluation of Image Quality for 7 Iterative Reconstruction Algorithms in Chest Computed Tomography Imaging: A Phantom Study. J Comput Assist Tomogr 2020; 44:673-680. [PMID: 32936576 DOI: 10.1097/rct.0000000000001037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
OBJECTIVES This study aimed to evaluate the image quality of 7 iterative reconstruction (IR) algorithms in comparison to filtered back-projection (FBP) algorithm. METHODS An anthropomorphic chest phantom was scanned on 4 computed tomography scanners and reconstructed with FBP and IR algorithms. Image quality of anatomical details-large/medium-sized pulmonary vessels, small pulmonary vessels, thoracic wall, and small and large lesions-was scored. Furthermore, general impression of noise, image contrast, and artifacts were evaluated. Visual grading regression was used to analyze the data. Standard deviations were measured, and the noise power spectrum was calculated. RESULTS Iterative reconstruction algorithms showed significantly better results when compared with FBP for these criteria (regression coefficients/P values in parentheses): vessels (FIRST: -1.8/0.05, AIDR Enhanced: <-2.3/0.01, Veo: <-0.1/0.03, ADMIRE: <-2.1/0.04), lesions (FIRST: <-2.6/0.01, AIDR Enhanced: <-1.9/0.03, IMR1: <-2.7/0.01, Veo: <-2.4/0.02, ADMIRE: -2.3/0.02), image noise (FIRST: <-3.2/0.004, AIDR Enhanced: <-3.5/0.002, IMR1: <-6.1/0.001, iDose: <-2.3/0.02, Veo: <-3.4/0.002, ADMIRE: <-3.5/0.02), image contrast (FIRST: -2.3/0.01, AIDR Enhanced: -2.5/0.01, IMR1: -3.7/0.001, iDose: -2.1/0.02), and artifacts (FIRST: <-3.8/0.004, AIDR Enhanced: <-2.7/0.02, IMR1: <-2.6/0.02, iDose: -2.1/0.04, Veo: -2.6/0.02). The iDose algorithm was the only IR algorithm that maintained the noise frequencies. CONCLUSIONS Iterative reconstruction algorithms performed differently on all evaluated criteria, showing the importance of careful implementation of algorithms for diagnostic purposes.
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Affiliation(s)
| | - Guro Hagemo
- Department of Radiology and Nuclear Medicine, Radiumhospitalet, Oslo University Hospital, Oslo, Norway
| | - Anders Tingberg
- Department of Medical Radiation Physics, Lund University, Skåne University Hospital, Malmö, Sweden
| | | | - Georg Karl Mynarek
- Department of Radiology and Nuclear Medicine, Rikshospitalet, Oslo University Hospital
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Sharma MB, Jensen K, Amidi A, Eskildsen SF, Johansen J, Grau C. Late toxicity in the brain after radiotherapy for sinonasal cancer: Neurocognitive functioning, MRI of the brain and quality of life. Clin Transl Radiat Oncol 2020; 25:52-60. [PMID: 33024844 PMCID: PMC7530204 DOI: 10.1016/j.ctro.2020.09.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/31/2020] [Accepted: 09/07/2020] [Indexed: 12/12/2022] Open
Abstract
Compared with matched normative data, impaired cognitive function was substantial. Several correlations between radiation dose and cognitive impairment were present. Radiation-induced white matter hyperintensities were present in 2/27 participants. One participant displayed radiation-induced necrosis in the temporal lobe. The domains affecting quality of life the most were fatigue and quality of sleep.
Purpose The aim of the study was to evaluate neurocognitive late effects, structural alterations and associations between cognitive impairment and radiation doses as well as cerebral tissue damage after radiotherapy for sinonasal cancer. Furthermore, the aim was to report quality of life (QoL) and self-reported cognitive capacity. Materials and methods Recurrence-free patients previously treated with intensity-modulated radiotherapy with a curative intent were eligible for the study. Study examinations comprised comprehensive neurocognitive testing, MRI of the brain, and self-reported outcomes. Results A total of 27 patients were included. Median age was 67 years (range 47–83). The majority of test outcomes were below normative values in any degree, and 37% of the participants had clinically significant neurocognitive impairment when compared with normative data. Correlations between absorbed doses to specific substructures of the brain and neurocognitive outcomes were present for Wechsler’s Adult Intelligence Scale-digit span and Controlled Oral Word Association Test-S. Structural MRI revealed macroscopic abnormalities in three patients; infarction (n = 1), diffuse white matter intensities (n = 2) and necrosis (n = 1). In the analysis of atrophy of cerebral tissue, no correlations were present with neither radiation dose to cerebral substructures nor neurocognitive impairment. The global QoL of the cohort was 75. The most affected outcomes were ‘fatigue’, ‘insomnia’, and ‘drowsiness’. A total of 59% of participants reported significantly impaired quality of sleep. Self-reported cognitive function revealed that ‘memory’ was the most affected cognitive domain. For the domains of ‘memory’ and ‘language’, self-reported functioning was associated with objectively measured neurocognitive outcomes. Conclusion Cerebral toxicity after radiotherapy for sinonasal cancer was substantial. Clinically significant cognitive impairment was present in more than one third of the participants, and several dose–response associations were present. Furthermore, the presence of macroscopic radiation sequelae indicated considerable impact of radiotherapy on brain tissue.
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Affiliation(s)
- M B Sharma
- Department of Oncology, Aarhus University Hospital, Palle Juul Jensen Boulevard 99, DK-8200 Aarhus N, Denmark
| | - K Jensen
- Danish Center for Particle Therapy, Aarhus University Hospital, Palle Juul Jensens Boulevard 99, B420, 8200 Aarhus N, Denmark
| | - A Amidi
- Unit for Psychooncology and Health Psychology, Department of Psychology, Aarhus University, Bartholins Allé 9, Build. 1351, 8000 Aarhus C, Denmark
| | - S F Eskildsen
- Center of Functionally Integrative Neuroscience, Aarhus University, Nørrebrogade 44, Build. 1A, 8000 Aarhus C, Denmark
| | - J Johansen
- Department of Oncology, Odense University Hospital, J.B. Winsløvs Vej 4, 5000 Odense, Denmark
| | - C Grau
- Department of Oncology, Aarhus University Hospital, Palle Juul Jensen Boulevard 99, DK-8200 Aarhus N, Denmark.,Danish Center for Particle Therapy, Aarhus University Hospital, Palle Juul Jensens Boulevard 99, B420, 8200 Aarhus N, Denmark
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Tang H, Nolte S, Jensen K, Yang Z, Wu J, Mueller P. Grazing mediates soil microbial activity and litter decomposition in salt marshes. Sci Total Environ 2020; 720:137559. [PMID: 32325578 DOI: 10.1016/j.scitotenv.2020.137559] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 02/11/2020] [Accepted: 02/24/2020] [Indexed: 06/11/2023]
Abstract
Salt marshes contribute to climate change mitigation because of their great capacity to store organic matter (OM) in soils. Most of the research regarding OM turnover in salt marshes in times of global change focuses on effects of rising temperature and accelerated sea-level rise, while effects of land-use change have gained little attention. The present work investigates the mechanisms by which livestock grazing can affect OM decomposition in salt marsh soils. In a grazing exclusion experiment at the mouth of the Yangtze estuary, China, we assessed soil microbial exo-enzyme activity (EEA) to gain insight into the microbial carbon (C) and nitrogen (N) demand. Additionally, we studied the decomposition of plant litter in soil using the Tea Bag Index (TBI), a widely used standardized litter bag assay to fingerprint soil decomposition dynamics. Based on EEAs, grazing markedly reduced microbial C acquisition, whereas microbial N acquisition was strongly increased. These opposing grazing effects were also evident in the decomposition of standardized plant litter: The decomposition rate constant (k) and the stabilization (S) of litter were not inversely related, as would be expected, but instead both were reduced by livestock grazing. Our data suggest that gazing effects on EEAs and litter decomposition can just partly be explained by grazing-driven soil compaction and resulting lower oxygen availability, which has previously been hypothesized as a main pathway by which grazing can reduce microbial activity in wetland soils. Instead, grazing effects on microbial nutrient demand occurs to be an at least equally important control on soil decomposition processes.
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Affiliation(s)
- H Tang
- Plant Ecology, Institute of Plant Science and Microbiology, Universität Hamburg, Ohnhorststr. 18, 22609 Hamburg, Germany
| | - S Nolte
- Plant Ecology, Institute of Plant Science and Microbiology, Universität Hamburg, Ohnhorststr. 18, 22609 Hamburg, Germany; School of Environmental Sciences, University of East Anglia, Norwich Research Park, NR4 7TJ Norwich, UK; Centre for Environment, Fisheries and Aquaculture Science, Pakefield Rd, Lowestoft, UK
| | - K Jensen
- Plant Ecology, Institute of Plant Science and Microbiology, Universität Hamburg, Ohnhorststr. 18, 22609 Hamburg, Germany
| | - Z Yang
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Coastal Ecosystems Research Station of Yangtze River Estuary, Institute of Biodiversity Science and Institute of Eco-Chongming, School of Life Sciences, Fudan University, 200433 Shanghai, PR China; Liupanshui Normal University, 553000 Liupanshui, PR China
| | - J Wu
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Coastal Ecosystems Research Station of Yangtze River Estuary, Institute of Biodiversity Science and Institute of Eco-Chongming, School of Life Sciences, Fudan University, 200433 Shanghai, PR China
| | - P Mueller
- Smithsonian Environmental Research Center, Contees Wharf Rd 647, MD 21037, Edgewater, United States.
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Ruhnke TR, Daniel V, Jensen K. Four New Species of Paraorygmatobothrium (Eucestoda: Phyllobothriidea) from Sharks of the Gulf of Mexico and the Atlantic Ocean, with Comments on Their Host Specificity. J Parasitol 2020. [DOI: 10.1645/19-129] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- T. R. Ruhnke
- Department of Biology, Barron Drive, West Virginia State University, Institute, West Virginia 25112-1000
| | - V. Daniel
- Department of Biology, Barron Drive, West Virginia State University, Institute, West Virginia 25112-1000
| | - K. Jensen
- Department of Ecology and Evolutionary Biology and the Biodiversity Institute, 1200 Sunnyside Ave., University of Kansas, Lawrence, Kansas 66045
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Ruhnke TR, Daniel V, Jensen K. Four New Species of Paraorygmatobothrium (Eucestoda: Phyllobothriidea) From Sharks of the Gulf of Mexico and the Atlantic Ocean, with Comments on Their Host Specificity. J Parasitol 2020; 106:133-156. [PMID: 32048913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023] Open
Abstract
Four new species of Paraorygmatobothrium are described from carcharhinid shark species from the Gulf of Mexico and the U.S. coast of the northwestern Atlantic Ocean. Paraorygmatobothrium bullardi n. sp. is described from Carcharhinus brevipinna as its type host, and from Carcharhinus acronotus and Carcharhinus limbatus. Paraorygmatobothrium campbelli n. sp. is described from Rhizoprionodon terraenovae. Paraorygmatobothrium deburonae n. sp. is described from Carcharhinus isodon as its type host, as well as from C. brevipinna, C. limbatus, and R. terraenovae. Paraorygmatobothrium mattisi n. sp. is described from R. terraenovae as its type host, and from C. brevipinna and C. limbatus. These 4 species differ from other species of Paraorygmatobothrium and from each other in bothridial microthrix shape, and in various combinations of features such as the total length of the worm, apical sucker size, bothridial musculature, proglottid number, testes number, and genital pore position. Difficulty in differentiating these 4 species from one another, and from other species of Paraorygmatobothrium, points to limitations in the use of morphology alone to recognize species diversity in this genus. A phylogenetic analysis of Paraorygmatobothrium and related genera, based on partial (D1-D3) 28S rDNA sequence data, confirms that the genus is not monophyletic. Genetic distances of COI revealed that sequence divergence between species of Paraorygmatobothrium is generally at least an order of magnitude larger than COI divergence within a species. Patterns of host use for 3 of the new species are consistent with previous findings that point to a lack of host specificity in Paraorygmatobothrium.
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Affiliation(s)
- T R Ruhnke
- Department of Biology, Barron Drive, West Virginia State University, Institute, West Virginia 25112-1000
| | - V Daniel
- Department of Biology, Barron Drive, West Virginia State University, Institute, West Virginia 25112-1000
| | - K Jensen
- Department of Ecology and Evolutionary Biology and the Biodiversity Institute, 1200 Sunnyside Ave., University of Kansas, Lawrence, Kansas 66045
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Shinn E, Jensen K, McLaughlin J, Garden A, Fellman B, Liang L, Peterson S. Interactive website for head and neck cancer patients: Adherence and coping program to prevent dysphagia after radiation. Internet Interv 2019; 18:100289. [PMID: 31890636 PMCID: PMC6926207 DOI: 10.1016/j.invent.2019.100289] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 10/19/2019] [Accepted: 10/22/2019] [Indexed: 11/28/2022] Open
Abstract
INTRODUCTION Pharyngeal and laryngeal cancers are highly curable; however survivors are at high risk for long-term dysphagia after radiation. To address lack of access to preventive care in community settings, we developed a responsive web-based application to help patients adhere to preventive swallowing exercises and cope with radiation side effects. We conducted an interim study analysis to determine website usage characteristics and to examine the effect size for future trials. METHODS Pharyngeal and laryngeal cancer patients were recruited for enrollment by speech language pathologists before primary radiation and introduced to the interactive website. The program (English and Spanish) features tracking logs for preventive exercises, instructional videos, patient stories and search features. Patients' self-reported swallowing function was assessed with the MD Anderson Dysphagia Inventory (MDADI) at baseline and at 6 months. Adherence to preventive exercises was assessed during the 10 week intervention. Number of unique website visits, total duration of website exposure, and rankings of the most popular webpages were calculated. Preliminary regression models were run using adherence and MDADI as outcomes. RESULTS Of the 160 enrolled, 96 had 10-week adherence data and 61 had 6-month MDADI data. The average age was 63 (SD = 12.26), 49.4% were from rural counties, 44% had a high school education or lower, and 42% reported annual income of $30,000 or less. The average number of visits was 5.49 (SD = 9.96) and the average total time spent with the website was 41.09 min (SD =88.48). Preliminary analyses indicated that number of unique visits to the website was independently associated with increased adherence to preventive exercises (p = .001-.008). CONCLUSION Our website showed significant effects in promoting adherence to swallowing exercises. However, our return visit rate showed that the platform needs improvement in navigability and usability for this older population undergoing challenging treatment in community settings with low resources.
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Affiliation(s)
- E.H. Shinn
- Department of Behavioral Science, University of Texas M. D. Anderson Cancer Center, United States of America
| | - K. Jensen
- Texas Health Care- Head and Neck Cancer Center of Texas, THC-PLLC, United States of America
| | | | - A.S. Garden
- Department of Radiation Oncology, University of Texas M. D. Anderson Cancer Center, United States of America
| | - B.M. Fellman
- Department of Biostatistics, University of Texas M. D. Anderson Cancer Center, United States of America
| | - Li Liang
- Department of Biostatistics, University of Texas M. D. Anderson Cancer Center, United States of America
| | - S.K. Peterson
- Department of Behavioral Science, University of Texas M. D. Anderson Cancer Center, United States of America
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Hansen CR, Friborg J, Jensen K, Samsøe E, Johnsen L, Zukauskaite R, Grau C, Maare C, Johansen J, Primdahl H, Bratland Å, Kristensen CA, Andersen M, Eriksen JG, Overgaard J. NTCP model validation method for DAHANCA patient selection of protons versus photons in head and neck cancer radiotherapy. Acta Oncol 2019; 58:1410-1415. [PMID: 31432744 DOI: 10.1080/0284186x.2019.1654129] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Introduction: Prediction models using logistic regression may perform poorly in external patient cohorts. However, there is a need to standardize and validate models for clinical use. The purpose of this project was to describe a method for validation of external NTCP models used for patient selection in the randomized trial of protons versus photons in head and neck cancer radiotherapy, DAHANCA 35. Material and methods: Organs at risk of 588 patients treated primarily with IMRT in the randomized controlled DAHANCA19 trial were retrospectively contoured according to recent international recommendations. Dose metrics were extracted using MatLab and all clinical parameters were retrieved from the DAHANCA database. The model proposed by Christianen et al. to predict physician-rated dysphagia was validated through the closed testing, where change of the model intercept, slope and individual beta's were tested for significant prediction improvements. Results: Six months prevalence of dysphagia in the validation cohort was 33%. The closed testing procedure for physician-rated dysphagia showed that the Christianen et al. model needed an intercept refitting for the best match for the Danish patients. The intercept update increased the risk of dysphagia for the validation cohort by 7.9 ± 2.5% point. For the raw model performance, the Brier score (mean squared residual) was 0.467, which improved significantly with a new intercept to 0.415. Conclusions: The previously published Dutch dysphagia model needed an intercept update to match the Danish patient cohort. The implementation of a closed testing procedure on the current validation cohort allows quick and efficient validation of external NTCP models for patient selection in the future.
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Affiliation(s)
- C. R. Hansen
- Laboratory of Radiation Physics, Odense University Hospital, Odense, Denmark
- Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
- Danish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
- Institute of Medical Physics, School of Physics, The University of Sydney, Sydney, Australia
| | - J. Friborg
- Danish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
- Department of Oncology, Rigshospitalet, Copenhagen, Denmark
| | - K. Jensen
- Danish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
| | - E. Samsøe
- Danish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
- Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - L. Johnsen
- Laboratory of Radiation Physics, Odense University Hospital, Odense, Denmark
| | - R. Zukauskaite
- Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
- Department of Oncology, Odense University Hospital, Odense, Denmark
| | - C. Grau
- Danish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
| | - C. Maare
- Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - J. Johansen
- Department of Oncology, Odense University Hospital, Odense, Denmark
| | - H. Primdahl
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
| | - Å. Bratland
- The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | | | - M Andersen
- Department of Oncology, Aalborg University Hospital, Aalborg, Denmark
| | - J. G. Eriksen
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
- Department of Experimental Clinical Oncology, Aarhus University Hospital, Aarhus, Denmark
| | - J. Overgaard
- Department of Experimental Clinical Oncology, Aarhus University Hospital, Aarhus, Denmark
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Bjarnason-Wehrens B, Nebel R, Jensen K, Hackbusch M, Grilli M, Gielen S, Schwaab B, Rauch B. Exercise-based cardiac rehabilitation in patients with reduced left ventricular ejection fraction: The Cardiac Rehabilitation Outcome Study in Heart Failure (CROS-HF): A systematic review and meta-analysis. Eur J Prev Cardiol 2019; 27:929-952. [PMID: 31177833 PMCID: PMC7272131 DOI: 10.1177/2047487319854140] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Background In heart failure with reduced left ventricular ejection fraction (HFrEF)
patients the effects of exercise-based cardiac rehabilitation on top of
state-of-the-art pharmacological and device therapy on mortality,
hospitalization, exercise capacity and quality-of-life are not well
established. Design The design of this study involved a structured review and meta-analysis. Methods Evaluation of randomised controlled trials of exercise-based cardiac
rehabilitation in HFrEF-patients with left ventricular ejection fraction
≤40% of any aetiology with a follow-up of ≥6 months published in 1999 or
later. Results Out of 12,229 abstracts, 25 randomised controlled trials including 4481
HFrEF-patients were included in the final evaluation. Heterogeneity in study
population, study design and exercise-based cardiac
rehabilitation-intervention was evident. No significant difference in the
effect of exercise-based cardiac rehabilitation on mortality compared to
control-group was found (hazard ratio 0.75, 95% confidence interval
0.39–1.41, four studies; 12-months follow-up: relative risk 1.29, 95%
confidence interval 0.66–2.49, eight studies; six-months follow-up: relative
risk 0.91, 95% confidence interval 0.26–3.16, seven studies). In addition
there was no significant difference between the groups with respect to
‘hospitalization-for-any-reason’ (12-months follow-up: relative risk 0.79,
95% confidence interval 0.41–1.53, four studies), or
‘hospitalization-due-to-heart-failure’ (12-months follow-up: relative risk
0.59, 95% confidence interval 0.12–2.91, four studies; six-months follow-up:
relative risk 0.84, 95% confidence interval 0.07–9.71, three studies). All
studies show improvement of exercise capacity. Participation in
exercise-based cardiac rehabilitation significantly improved quality-of-life
as evaluated with the Kansas City Cardiomyopathy Questionnaire: (six-months
follow-up: mean difference 1.94, 95% confidence interval 0.35–3.56, two
studies), but no significant results emerged for quality-of-life measured by
the Minnesota Living with Heart Failure Questionnaire (nine-months or more
follow-up: mean difference –4.19, 95% confidence interval –10.51–2.12, seven
studies; six-months follow-up: mean difference –5.97, 95% confidence
interval –16.17–4.23, four studies). Conclusion No association between exercise-based cardiac rehabilitation and mortality or
hospitalisation could be observed in HFrEF patients but exercise-based
cardiac rehabilitation is likely to improve exercise capacity and quality of
life.
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Affiliation(s)
| | - R Nebel
- Hermann-Albrecht-Klinik Mettnau, Germany
| | - K Jensen
- Institute of Medical Biometry and Informatics, University of Heidelberg, Germany
| | - M Hackbusch
- Institute of Medical Biometry and Informatics, University of Heidelberg, Germany
| | - M Grilli
- Medical Faculty University Library, University of Mannheim-Heidelberg, Germany
| | - S Gielen
- Department of Cardiology, Angiology and Intensive Care, Klinikum Lippe, Detmold, Germany.,Faculty of Medicine, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - B Schwaab
- Curschmann Klinik, Timmendorfer Strand, Germany
| | - B Rauch
- Institut für Herzinfarktforschung (IHF), Ludwigshafen, Germany
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Argota Perez R, Sharma M, Jensen K, Vestergaard A, Petersen J, Korreman S. EP-1999 Robustness of IMPT plans towards anatomical variations for nasopharyngeal cancer. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)32419-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kaplan L, Holm A, Elstrøm U, Eriksen J, Jensen K, Primdahl H, Andreassen C, Korreman S. OC-0520 Inter-observer variations in plan evaluation. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30940-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Stanford N, McAllister J, Addonizio L, Richmond M, Law S, Lee T, Farr M, Gibbons M, Jensen K, Lee H, Rothkopf A, Jackson R, Zuckerman W. Lifetime Achievement and Quality of Life in Adult Survivors of Pediatric Heart Transplant. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Eudy E, Caira JN, Jensen K. A New Species of Pentaloculum (Cestoda: "Tetraphyllidea") from the Taiwan Saddled Carpetshark, Cirrhoscyllium formosanum (Orectolobiformes: Parascylliidae). J Parasitol 2019; 105:303-312. [PMID: 30990771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023] Open
Abstract
Collection of cestodes from the Taiwan saddled carpetshark, Cirrhoscyllium formosanum, for the first time led to the discovery of Pentaloculum hoi n. sp. This species provided important insights into the identity of the heretofore monotypic Pentaloculum-known previously only from the blind electric ray, Typhlonarke aysoni, in New Zealand. The new species differs from Pentaloculum macrocephalum in testis number, vitelline follicle and cirrus sac configuration, and in that it is hyperapolytic rather than euapolytic. Maximum-likelihood analysis of sequence data generated for the D1-D3 region of the 28S rDNA gene not only confirmed this generic placement but also confirmed the close affinities between both species of Pentaloculum and specimens previously referred to in the literature as new genus 7 n. sp. 1. Examination of limited material of the latter, including that of a second specimen from which partial 28S rDNA sequence data were generated here, led to the realization that new genus 7 n. sp. 1 represents an undescribed species of Pentaloculum, referred to here as Pentaloculum n. sp. 2. All 3 species share bothridia divided into 1 anterior and 2 consecutive pairs of loculi. Given that Pentaloculum n. sp. 2 parasitizes a member of the second and only other genus of parascylliid sharks (i.e., Parascyllium), we predict that the 4 other species of Parascyllium and the 2 other species of Cirrhoscyllium are likely to host other species of Pentaloculum. The factors that might account for the eclectic host associations of Pentaloculum, which include a torpediniform ray and 2 species of orectilobiform sharks, are currently unclear. The compilation of diet data for these elasmobranchs and determination of the final intermediate hosts for these cestodes would be interesting avenues of further investigation given that cestodes are trophically transmitted between their intermediate and definitive hosts. The phylogenetic affinities of Pentaloculum among elasmobranch cestodes remain unresolved.
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Affiliation(s)
- Elizabeth Eudy
- 1 Department of Ecology and Evolutionary Biology, 75 N. Eagleville Road Unit 3043, University of Connecticut, Storrs, Connecticut 06269-3043
| | - J N Caira
- 1 Department of Ecology and Evolutionary Biology, 75 N. Eagleville Road Unit 3043, University of Connecticut, Storrs, Connecticut 06269-3043
| | - K Jensen
- 2 Department of Ecology and Evolutionary Biology and the Biodiversity Institute, 1200 Sunnyside Avenue, University of Kansas, Lawrence, Kansas 66045
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Saksoe M, Jensen K, Andersen M, Eriksen J, Overgaard J. OC-041 DAHANCA 28a: Phase I/II study of acc. hyperfractionated RT, cisplatin and nimorazole in P16-LAHNSCC. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30207-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Andreassen C, Eriksen J, Jensen K, Hansen C, Sørensen B, Lassen P, Alsner J, Schack L, Overgaard J, Grau C. IMRT – Biomarkers for dose escalation, dose de-escalation and personalized medicine in radiotherapy for head and neck cancer. Oral Oncol 2018; 86:91-99. [DOI: 10.1016/j.oraloncology.2018.09.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 09/03/2018] [Indexed: 12/13/2022]
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Gilmore G, Jensen K, Saligram S, Sachdev TP, Arekapudi SR. Goblet cell carcinoid of the appendix - diagnostic challenges and treatment updates: a case report and review of the literature. J Med Case Rep 2018; 12:275. [PMID: 30244681 PMCID: PMC6151924 DOI: 10.1186/s13256-018-1789-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 08/01/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Goblet cell carcinoid is a rare but distinct entity of appendiceal tumors which is a hybrid or mixed tumor consisting of both epithelial (glandular) and neuroendocrine elements containing goblet cells. This entity is important to recognize and appropriately grade as it tends to be more aggressive than typical carcinoid tumors, often presenting with metastatic disease. As a result, the 5-year overall survival is 14-22% in stage III-IV disease. GCC therefore warrants more aggressive surgical and medical (chemotherapy) interventions than typical carcinoid tumors. Through this case report we give a brief update on GCC pathological features, staging, surgical management, and review the literature as a guide to indications for chemotherapy and choice of agents. CASE PRESENTATION We present the case of a 77-year-old Caucasian man with a history of stage I adenocarcinoma of transverse colon status post transverse colectomy who was incidentally found on surveillance colonoscopy to have an abnormal appendiceal orifice lesion. A biopsy revealed an appendiceal goblet cell carcinoid and he underwent a right hemicolectomy which revealed a pathologic stage III GCC for which he received eight cycles of adjuvant chemotherapy with capecitabine. CONCLUSIONS It is essential that patients who have tumors > 2 cm, are pT3 or pT4, have higher grade histology with signet ring (Tang grade B or grade C), locally advanced, or with positive surgical margins on appendectomy undergo a right hemicolectomy. Although there is no category 1 evidence, consensus recommendations are that patients with stage II (particularly Tang B and C) and stage III GCC be offered adjuvant chemotherapy with a regimen based on 5-fluorouracil, as these patients are known to have high rates of relapse.
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Affiliation(s)
- Gregory Gilmore
- Department of Medicine, Veterans Affairs Central California Health Care System, University of California San Francisco, 2615 E Clinton Ave, Fresno, CA, 93703, USA
| | - Kristin Jensen
- Department of Pathology, Veterans Affairs Palo Alto Health Care System, Stanford Hospital and Clinics, Palo Alto, CA, 94304, USA
| | - Shreyas Saligram
- Department of Medicine, Veterans Affairs Central California Health Care System, University of California San Francisco, 2615 E Clinton Ave, Fresno, CA, 93703, USA
| | - Thomas P Sachdev
- Department of Medicine, Veterans Affairs Central California Health Care System, University of California San Francisco, 2615 E Clinton Ave, Fresno, CA, 93703, USA
| | - Subramanyeswara R Arekapudi
- Department of Medicine, Veterans Affairs Central California Health Care System, University of California San Francisco, 2615 E Clinton Ave, Fresno, CA, 93703, USA.
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Sedaghat-Hamedani F, Kayvanpour E, Tugrul OF, Amr A, Lai A, Haas J, Proctor T, Ehlermann PH, Jensen K, Katus HA, Meder B. P4729Spectrum of clinical phenotypes and genotypes in 5310 patients with hypertrophic cardiomyopathy. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | - E Kayvanpour
- University Hospital of Heidelberg, Heidelberg, Germany
| | - O F Tugrul
- University Hospital of Heidelberg, Heidelberg, Germany
| | - A Amr
- University Hospital of Heidelberg, Heidelberg, Germany
| | - A Lai
- University Hospital of Heidelberg, Heidelberg, Germany
| | - J Haas
- University Hospital of Heidelberg, Heidelberg, Germany
| | - T Proctor
- University of Heidelberg, Institute of Medical Biometry and Informatics, Heidelberg, Germany
| | - P H Ehlermann
- University Hospital of Heidelberg, Heidelberg, Germany
| | - K Jensen
- University of Heidelberg, Institute of Medical Biometry and Informatics, Heidelberg, Germany
| | - H A Katus
- University Hospital of Heidelberg, Heidelberg, Germany
| | - B Meder
- University Hospital of Heidelberg, Heidelberg, Germany
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Hvid C, Elstrøm U, Jensen K, Grau C. PV-0427: CBCT based estimation of delivered dose is not more predictive for NTCP than planned dose. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)30737-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Samsøe E, Grau C, Johansen J, Andersen E, Petersen J, Jensen K, Smulders B, Friborg J, Sand H, Andersen M, Logadóttir A, Ujmajuridze Z, Hansen C. PO-0922: Implementation of swallowing organs in national radiotherapy guidelines for H&N cancer. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31232-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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