Gjessing HK, Grøttum P, Dreier JM, Eik‐Nes SH. Biparietal diameter vs crown–rump length as standard parameter for late first‐trimester pregnancy dating. Ultrasound in Obstet & Gyne. 2024;64(6):739-745. doi:10.1002/uog.29124
Gjessing HK, Grøttum P, Økland I, Eik-Nes SH. Fetal size monitoring and birth-weight prediction: a new population-based approach. Ultrasound in Obstetrics & Gynecology. 2017;49(4):500-507. doi:10.1002/uog.15954
Gjessing HK. Svangerskapsdatering. Norsk Epidemiologi. 2017;27(1-2). doi:10.5324/nje.v27i1-2.2397
Eggebø TM, Klefstad OA, Økland I, Lindtjørn E, Eik-Nes SH, Gjessing HK. Estimation of fetal weight in pregnancies past term. Acta Obstetricia et Gynecologica Scandinavica. 2017;96(2):183-189. doi:10.1111/aogs.13044
Økland I, Nakling J, Gjessing HK, Grøttum P, Eik-Nes SH. Advantages of the population-based approach to pregnancy dating: results from 23 020 ultrasound examinations. Ultrasound Obstet Gynecol. 2012;39(5):563-568. doi:10.1002/uog.10081
Økland I, Gjessing HK, Grøttum P, Eggebø TM, Eik-Nes SH. A new population-based term prediction model vs. two traditional sample-based models: validation on 9046 ultrasound examinations. Ultrasound Obstet Gynecol. 2011;37(2):207-213. doi:10.1002/uog.7728
Økland I, Bjåstad TG, Johansen TF, Gjessing HK, Grøttum P, Eik-Nes SH. Narrowed beam width in newer ultrasound machines shortens measurements in the lateral direction: fetal measurement charts may be obsolete. Ultrasound Obstet Gynecol. 2011;38(1):82-87. doi:10.1002/uog.8954
Økland I, Gjessing HK, Grøttum P, Eik-Nes SH. Biases of traditional term prediction models: results from different sample-based models evaluated on 41 343 ultrasound examinations. Ultrasound Obstet Gynecol. 2010;36(6):728-734. doi:10.1002/uog.7707
Gjessing HK, Grøttum P, Eik-Nes SH. A direct method for ultrasound prediction of day of delivery: a new, population-based approach. Ultrasound Obstet Gynecol. 2007;30(1):19-27. doi:10.1002/uog.4053
Letters to the Editor, commentaries, and conference abstracts
Økland I, Gjessing HK, Grøttum P, Eik-Nes S. OP32. 01: The importance of standardizing pregnancy dating models. Ultrasound in Obstetrics & Gynecology. 2012;40(S1):151-152.
Gjessing HK, Grøttum P, Økland I, Eik-Nes SH. Comment and reply on: Prediction of the date of delivery based on first trimester ultrasound measurements: an independent method from estimated date of conception. J Matern Fetal Neonatal Med. 2010;23(8):944-947. doi:10.3109/14767050903420309
Gjessing HK, Grøttum P, Okland I, Eik-Nes SH. Comment and reply on: prediction of the date of delivery based on first trimester ultrasound measurements: an independent method from estimated date of conception. The journal of maternal-fetal & neonatal medicine: the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians. 2010;23(8):944.
Økland I, Bjåstad TG, Johansen TF, Gjessing HK, Grøttum P, Eik-Nes SH. OC14. 06: Femur length measurements are influenced by beam width. Ultrasound in Obstetrics & Gynecology. 2009;34(S1):27-27.
Økland I, Gjessing H, Grøttum P, Eggebø T, Eik-Nes S. OP08. 02: A new population-based term prediction method—evaluation of the BPD-based predictions. Ultrasound in Obstetrics & Gynecology. 2007;30(4):478-479.
Økland I, Gjessing HK, Grøttum P, Eggebø TM, Eik-Nes SH. OC01: A new population-based term prediction method—evaluation of the FL-based predictions. Ultrasound in Obstetrics & Gynecology. 2007;30(4):367-367.
Eik-Nes SH, Blaas HGK, Grottom P, Gjessing HK. OP08. 01: Predicting remaining time of pregnancy—a new population-based approach for the prediction of day of delivery based on Femur length. Ultrasound in Obstetrics & Gynecology. 2007;30(4):478-478.
Eik-Nes SH, Grøttum P, Gjessing H. Regarding “Term prediction with ultrasound: evaluation of a new dating curve for biparietal diameter.” Acta Obstet Gynecol Scand. 2006;85(10):1276-1278. doi:10.1080/00016340600839668
