Kjersti Johnsrud

• Helgebostad, Rasmus; Rootwelt-Revheim, Mona Elisabeth; Johnsrud, Kjersti; Amlie, Kristine; Alavi, Abass & Connelly, James Pattrick (2022). Clinical Applications of Somatostatin Receptor (Agonist) PET Tracers beyond Neuroendocrine Tumors. Diagnostics (Basel). ISSN 2075-4418. 12(2), p. 1–19. doi: 10.3390/diagnostics12020528. Full text in Research Archive
• Johnsrud, Kjersti; Seierstad, Therese; Russell, David & Rootwelt-Revheim, Mona-Elisabeth (2020). Inter-reader agreement of 18F-FDG PET/CT for the quantification of carotid artery plaque inflammation. JRSM cardiovascular disease. ISSN 2048-0040. 9, p. 1–8. doi: 10.1177/2048004020980941. Full text in Research Archive
• Johnsrud, Kjersti; Skagen, Karolina Ryeng; Seierstad, Therese; Skjelland, Mona; Russell, David & Rootwelt-Revheim, Mona-Elisabeth (2017). 18F-FDG PET/CT for the quantification of inflammation in large carotid artery plaques. Journal of Nuclear Cardiology. ISSN 1071-3581. p. 1–11. doi: 10.1007/s12350-017-1121-7.
• Skagen, Karolina Ryeng; Johnsrud, Kjersti; Evensen, Kristin; Scott, Helge; Krohg-Sørensen, Kirsten & Reier-Nilsen, Frode [Show all 10 contributors for this article] (2015). Carotid plaque inflammation assessed with 18F-FDG PET/CT is higher in symptomatic compared with asymptomatic patients. International Journal of Stroke. ISSN 1747-4930. 10(5), p. 730–736. doi: 10.1111/ijs.12430.
• Revheim, Mona Elisabeth; Haugvik, Sven-Petter; Johnsrud, Kjersti; Mathisen, Øystein; Fjeld, Jan Gunnar & Skretting, Arne (2015). Respiratory gated and prolonged acquisition 18F-FDG PET improve preoperative assessment of colorectal liver metastases. Acta Radiologica. ISSN 0284-1851. 56(4), p. 397–403. doi: 10.1177/0284185114529563.
• Bugge, Anders Standal; Naalsund, Anne; Johnsrud, Kjersti; Berstad, Audun Elnæs; Samersaw-Lund, May Brit & Kongerud, Johny (2014). PET-CT in the assessment of lung cancer at Rikshospitalet from 2007–2011. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 134(9), p. 938–944. doi: 10.4045/tidsskr.12.1512. Show summary

  BACKGROUND PET-CT is an aid in the assessment of lung cancer for identifying operable patients. The examination is recommended for most patients with non-small cell lung cancer whom the primary assessment has indicated may have a curable disease. The aim was to assess the usefulness of PET-CT for patients assumed to be operable who underwent an examination at Rikshospitalet. MATERIAL AND METHOD Patients admitted for lung cancer assessment are registered consecutively in the department’s quality database. We analysed data for the period 2007 – 2011 for patients whom a primary assessment had revealed to have a potentially operable tumour. For capacity reasons, some patients underwent surgery without a prior PET-CT. RESULTS Of 651 potentially operable patients, 533 had had a PET-CT scan of which 403 (76 %) had undergone surgery. We calculated that the examination had a sensitivity of 78 % (95 % CI 70 – 86) and specificity 88 % (95 % CI 85 – 91 %), positive predictive value 64 % (95 % CI 55 – 72) and negative predictive value 94 % (95 % CI 91 – 96) for spreading to mediastinal lymph nodes. Diagnostic accuracy was 86 % (95 % CI 83 – 89) with kappa agreement 0.61 (95 % CI 0.53 – 0.69) between PET-CT and actual findings of malignant or benign mediastinal lymph nodes. INTERPRETATION PET-CT was a useful tool for selecting potentially operable lung cancer patients at Rikshospitalet in the period 2007 – 2011. Provided that the population we scan with PET-CT does not change, patients with a negative PET-CT can with few exceptions be referred directly for surgery without further invasive assessment.

• Skretting, Arne; Revheim, Mona Elisabeth; Knudtsen, Ingerid Skjei; Johnsrud, Kjersti & Bogsrud, Trond (2013). An implementation of time-efficient respiratory-gated PET acquisition by repeated breath-holds. Acta Radiologica. ISSN 0284-1851. 54(6), p. 672–675. doi: 10.1177/0284185113478007.
• Johnsrud, Kjersti; Skretting, Arne; Naum, Alexandru Gratian; Bogsrud, Trond & Bach-Gansmo, Tore (2013). Characterization of an asymmetric add-on collimator used with a hand-held gamma probe for radioguided surgery and sentinel node detection: a demonstration of an alternative collimation method. Clinical Physiology and Functional Imaging. ISSN 1475-0961. 33(6), p. 478–482. doi: 10.1111/cpf.12057.
• Lange, Eva Charlotte de; Malinen, Eirik; Qu, Hong; Johnsrud, Kjersti; Skretting, Arne & Saugstad, Ola Didrik [Show all 7 contributors for this article] (2012). Dynamic FDG-PET for assessing early effects of cerebral hypoxia and resuscitation in new born pigs. European Journal of Nuclear Medicine and Molecular Imaging. ISSN 1619-7070. 39(5), p. 792–799. doi: 10.1007/s00259-011-2055-y.

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• Bolstad, Nils; Kazaryan, Airazat M.; Revheim, Mona Elisabeth; Distante, Sonia; Johnsrud, Kjersti & Warren, David [Show all 8 contributors for this article] (2012). A Man with Abdominal Pain: Enough Evidence for Surgery? Clinical Chemistry. ISSN 0009-9147. 58(8), p. 1187–1190. doi: 10.1373/clinchem.2011.167015.
• Johnsrud, Kjersti; Skretting, Arne; Fjeld, Jan Gunnar & Russell, David (2010). FDG-PET imaging of unstable carotid plaques: comparing preoperative imaging with microPET after endarterectomy. European Journal of Neurology. ISSN 1351-5101. 17, p. 131–131.

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