Johan Löfgren
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View article: Angiogenesis PET/MRI predicts initial growth of sporadic vestibular schwannomas: a prospective study with follow-up in 29 patients using [68Ga]Ga-NODAGA-E[c(RGDyK)]2
Angiogenesis PET/MRI predicts initial growth of sporadic vestibular schwannomas: a prospective study with follow-up in 29 patients using [68Ga]Ga-NODAGA-E[c(RGDyK)]2 Open
Background Vestibular schwannomas (VS) are benign tumors located at the cerebellopontine angle. Although benign, the growth of VS can result in significant morbidity and ultimately incarceration if left untreated. An MRI of the cerebellopo…
View article: Real-World Data on Combined EGFR-TKI and Crizotinib Treatment for Acquired and De Novo MET Amplification in Patients with Metastatic EGFR-Mutated NSCLC
Real-World Data on Combined EGFR-TKI and Crizotinib Treatment for Acquired and De Novo MET Amplification in Patients with Metastatic EGFR-Mutated NSCLC Open
Amplification of the mesenchymal epithelial transition (MET) gene is a mechanism of acquired resistance to epidermal growth factor receptor (EGFR)-tyrosine-kinase-inhibitors (TKIs) in over 20% of patients with advanced EGFR-mutated (EGFRm+…
View article: Nucleation at Finite Temperature: A Gauge-Invariant Perturbative Framework
Nucleation at Finite Temperature: A Gauge-Invariant Perturbative Framework Open
We present a gauge-invariant framework for bubble nucleation in theories with radiative symmetry breaking at high temperature. As a procedure, this perturbative framework establishes a practical, gauge-invariant computation of the leading …
View article: Radiative first-order phase transitions to next-to-next-to-leading order
Radiative first-order phase transitions to next-to-next-to-leading order Open
We develop new perturbative tools to accurately study radiatively-induced first-order phase transitions. Previous perturbative methods have suffered internal inconsistencies and been unsuccessful in reproducing lattice data, which is often…
View article: Computing the gauge-invariant bubble nucleation rate in finite temperature effective field theory
Computing the gauge-invariant bubble nucleation rate in finite temperature effective field theory Open
A gauge-invariant framework for computing bubble nucleation rates at finite temperature in the presence of radiative barriers was presented and advocated for model-building and phenomenological studies in an accompanying article arXiv:2112…
View article: Toward PET/MRI as one-stop shop for radiotherapy planning in cervical cancer patients
Toward PET/MRI as one-stop shop for radiotherapy planning in cervical cancer patients Open
These results suggest that multiparametric PET/MRI can be successfully integrated as a one-stop-shop in the RT workflow of patients with cervical cancer.
View article: Uncommon Presentation of Granulomatosis with Polyangiitis Mimicking Metastatic Lung Cancer
Uncommon Presentation of Granulomatosis with Polyangiitis Mimicking Metastatic Lung Cancer Open
Diagnosis of anomalous intrathoracic lesions may be challenging and require a multidisciplinary approach. We present a case of granulomatosis with polyangiitis (GPA) clinically and radiologically mimicking metastatic lung cancer with a bil…
View article: Cover Image, Volume 22, Issue 10
Cover Image, Volume 22, Issue 10 Open
The cover image is based on the Original Article No effects of a six-week intervention with glucagon-like peptide-1 receptor analogue on pancreatic volume and edema in obese men without diabetes by JOHAN LÖFGREN et al., https://doi.org/10.…
View article: 355-OR: Effects of a Six-Week Intervention with Glucagon-Like Peptide-1 Analogue on Pancreatic Volume, Edema, and DNA Synthesis in Obese Men
355-OR: Effects of a Six-Week Intervention with Glucagon-Like Peptide-1 Analogue on Pancreatic Volume, Edema, and DNA Synthesis in Obese Men Open
Plasma concentrations of the two pancreatic enzymes, amylase and lipase, are increased within the normal physiological range after initiation of glucagon-like peptide-1 receptor agonist (GLP-1RA) treatment. An association between the use o…
View article: Why do next generation farmers decide to invest in Farm businesses
Why do next generation farmers decide to invest in Farm businesses Open
The growing world population will lead to an increased demand for food in the future. Feeding the population is considered to be the main function of agriculture. Previous literature has concluded that the share of young farmers in Sweden …
View article: Very Early Response Evaluation by PET/MR in Patients with Lung Cancer—Timing and Feasibility
Very Early Response Evaluation by PET/MR in Patients with Lung Cancer—Timing and Feasibility Open
Purpose: With the increasing number of therapy options available for patients with lung cancer, early response evaluation is needed. We performed this pilot study to assess the feasibility of early, repeated Positron emission tomography-ma…
View article: PET/DW-MRI for evaluating treatment in chronic hepatitis C patients.
PET/DW-MRI for evaluating treatment in chronic hepatitis C patients. Open
This feasibility study set out to investigate the use of FDG-PET/DW-MRI in chronic hepatitis C patients to examine changes in local liver inflammation after treatment with direct-acting antivirals (DAA). Twelve patients with chronic hepati…
View article: Endoscopic electrochemotherapy for esophageal cancer: a phase I clinical study
Endoscopic electrochemotherapy for esophageal cancer: a phase I clinical study Open
Background and study aims Esophageal cancer is on the rise in the western world and the disease has a poor 5-year survival prognosis below 20 %. Electrochemotherapy is a treatment where a chemotherapeutic drug is combined with locally appl…
View article: A Prospective Study Comparing <sup>99m</sup>Tc-Hydroxyethylene-Diphosphonate Planar Bone Scintigraphy and Whole-Body SPECT/CT with <sup>18</sup>F-Fluoride PET/CT and <sup>18</sup>F-Fluoride PET/MRI for Diagnosing Bone Metastases
A Prospective Study Comparing <sup>99m</sup>Tc-Hydroxyethylene-Diphosphonate Planar Bone Scintigraphy and Whole-Body SPECT/CT with <sup>18</sup>F-Fluoride PET/CT and <sup>18</sup>F-Fluoride PET/MRI for Diagnosing Bone Metastases Open
We prospectively evaluated and compared the diagnostic performance of 99mTc-hydroxyethylene-diphosphonate (99mTc-HDP) planar bone scintigraphy (pBS), 99mTc-HDP SPECT/CT, 18F-NaF PET/CT, and 18F-NaF PET/MRI for the detection of bone metasta…
View article: Clinical importance of re‐interpretation of <scp>PET</scp>/<scp>CT</scp> scanning in patients referred to a tertiary care medical centre
Clinical importance of re‐interpretation of <span>PET</span>/<span>CT</span> scanning in patients referred to a tertiary care medical centre Open
Summary Purpose To evaluate, in a controlled prospective manner with double‐blind read, whether there are differences in interpretations of PET / CT scans at our tertiary medical centre, Rigshospitalet, compared to the external hospitals. …
View article: Reproducibility of<sup>18</sup>F-FDG PET uptake measurements in head and neck squamous cell carcinoma on both PET/CT and PET/MR
Reproducibility of<sup>18</sup>F-FDG PET uptake measurements in head and neck squamous cell carcinoma on both PET/CT and PET/MR Open
This is the first report to test reproducibility of PET/CT and PET/MR.