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Direct Visuo-Haptic 4D Volume Rendering Using Respiratory Motion Models

, : Direct Visuo-Haptic 4D Volume Rendering Using Respiratory Motion Models. IEEE Transactions on Haptics 8(4): 371-383

This article presents methods for direct visuo-haptic 4D volume rendering of virtual patient models under respiratory motion. Breathing models are computed based on patient-specific 4D CT image data sequences. Virtual patient models are visualized in real-time by ray casting based rendering of a reference CT image warped by a time-variant displacement field, which is computed using the motion models at run-time. Furthermore, haptic interaction with the animated virtual patient models is provided by using the displacements computed at high rendering rates to translate the position of the haptic device into the space of the reference CT image. This concept is applied to virtual palpation and the haptic simulation of insertion of a virtual bendable needle. To this aim, different motion models that are applicable in real-time are presented and the methods are integrated into a needle puncture training simulation framework, which can be used for simulated biopsy or vessel puncture in the liver. To confirm real-time applicability, a performance analysis of the resulting framework is given. It is shown that the presented methods achieve mean update rates around 2,000 Hz for haptic simulation and interactive frame rates for volume rendering and thus are well suited for visuo-haptic rendering of virtual patients under respiratory motion.


PMID: 26087498

DOI: 10.1109/TOH.2015.2445768

Other references

Kip, S.N.; Strehler, E.E., 2002: Characterization of PMCA isoforms and their contribution to transcellular Ca2+ flux in MDCK cells. Plasma membrane Ca(2+) ATPases (PMCAs) are ubiquitous in Ca(2+)-transporting organs, including the kidney. Using RT-PCR, we detected PMCA1b, PMCA2b (rare), and PMCA4b in Madin-Darby canine kidney (MDCK) cells. At the protein level, only PMCA1 and...

Markizov L.P., 1970: Excavation of frozen soils at Vorkuta. Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 5, p. 32-34, 1970.

Guo, B.; Wu, Q.; Gong, J.; Xiao, Z.; Tang, Y.; Shang, J.; Cheng, Y.; Xu, H., 2016: Gender Difference in Body Fat for Healthy Chinese Children and Adolescents. This study aimed to establish gender-related differences and the percentile curves for total body fat mass percentage (Total FM%), trunk/appendicular fat mass ratio (TrAppFMR), and fat mass ratio as % fat trunk/% fat lower limb (TrLLFMR) in Chines...

Lee, L.W.; Kerrigan, D.Casey., 2004: Dynamic hip flexion contractures. American Journal of Physical Medicine & Rehabilitation 83(8): 658-658

Yadav, J.S.; Chahal, S.M.S.; Joshi, D.; Yadav, A.S., 2000: Biochemical variation and genetic structure in Haryana, North-West India. Bhasin, M K [Editor, Reprint Author], Bhasin, Veena [Editor, Reprint Author] Man-environment relationship : 279-288

Iaunsleinis, L.; Michule, G.T.alita, V., 1980: Primary veterinary calculation and the electron computer. Veterinariia (3) 18-20

Bastien, C.H.; Fortier Brochu, E.; Rioux, I.; Leblanc, M.; Morin, C.M., 2001: Relations between objective and subjective measures of cognitive performance and quality of sleep in elderly suffering of chronic insomnia. Sleep (Rochester) 24(Abstract Supplement): A333-A334, April 15

Cho, H.; Ahn, J-Hyung.; Weon, H-Yeon.; Joa, J-Ho.; Hong, S-Beom.; Seok, S-Ja.; Kim, J-Seon.; Kwon, S-Wo.; Kim, S-Jin., 2017: Parafilimonas rhizosphaerae sp. nov., isolated from the rhizosphere of tomato plant (Solanum lycopersicum L.). A bacterial strain, designated T16E-198T, was isolated from the rhizosphere of tomato plant collected from a farm on Buyeo-gun, Chungcheongnam-do, South Korea. The strain was aerobic, Gram-stain-negative, rod-shaped, non-flagellated and yellow-pig...

Ribeiro, RD.; Belda Neto, FM.; Barretto, MP., 1977: Estudos sobre reservatorios e vectores silvestres do Trypanosoma cruzi. 62: evolucao do T. cruzi na cavidade celomica de triatomineos. Revista bras Biol, 371: 55-59

Attar, M.; Azar, S.Shahbazi.; Shahbazi, M., 2016: Interleukin-6-174 Promoter Polymorphism and Susceptibility to Hepatitis B Virus Infection as a Risk Factor for Hepatocellular Carcinoma in Iran. Hepatitis B virus (HBV) is a major risk factor for hepatocellular carcinoma (HCC). Cytokines play an important role in the regulation of immune responses and defense against viral infections. Human interleukin 6 (IL6) is a multifunctional cytokine...