Thalmann Algorithm

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The Thalmann Algorithm (VVAL18) is a deterministic decompression model developed by Capt. Edward D. Thalmann, M.D., USN, who did research into decompression theory at the Naval Medical Research Institute, Navy Experimental Diving Unit, the State University of New York at Buffalo and Duke University. The algorithm forms the basis for the current U.S. Navy mixed gas and standard air dive tables.

[edit] Description

VVAL 18 is a deterministic model that utilizes the Naval Medical Research Institute Linear Exponential (NMRI LE1 PDA) data set for calculation of decompression schedules. Phase two testing of the US Navy Diving Computer produced an acceptable algorithm with an expected maximum incidence of decompression sickness less than 3.5% assuming that occurrence followed the binomial distribution at the 95% confidence level.

[edit] References

Thalmann, E. D.; I. P. B. Buckingham and W. H. Spaur. (1980). "Testing of decompression algorithms for use in the U.S. Navy underwater decompression computer (Phase I).". Navy Exp. Diving Unit Res. Report 11-80.

Thalmann, E. D. (1983). "Computer algorithms used in computing the MK15/16 constant 0.7 ATA oxygen partial pressure decompression tables.". Navy Exp. Diving Unit Res. Report 1-83.

Thalmann, E. D. (1984). "Phase II testing of decompression algorithms for use in the U.S. Navy underwater decompression computer.". Navy Exp. Diving Unit Res. Report 1-84.

Thalmann, E. D. (1985). "Development of a Decompression Algorithm for Constant Oxygen Partial Pressure in Helium Diving.". Navy Exp. Diving Unit Res. Report 1-85.

Thalmann, E. D. (1985). "Air-N202 Decompression Computer Algorithm Development.". Navy Exp. Diving Unit Res. Report 8-85.

Weathersby, P. K.; S.S. Survanshi, R.Y. Nishi, and E.D. Thalmann. (1992). "Statistically based decompression tables VII: Selection and treatment of primary air and N2O2 data.". Joint Report: Naval Submarine Medical Research Laboratory and Naval Medical Research Institute NSMRL 1182 and NMRI 92-85.

Parker, E. C.; S.S. Survanshi, P.K. Weathersby, and E.D. Thalmann. (1992). "Statistically Based Decompression Tables VIII: Linear Exponential Kinetics.". Naval Medical Research Institute Report 92-73.

Ball, R.; J. Himm, L. D. Homer, and E. D. Thalmann. (1994). "A Model of Bubble Evolution During Decompression Based on a Monte Carlo Simulation of Inert Gas Diffusion.". Naval Medical Research Institute Report 94-36.

Parker, E. C.; S.S. Survanshi, E.D. Thalmann and P.K. Weathersby. (1996). "Statistically based decompression tables IX: probabilistic models of the role of oxygen in human decompression sickness.". Naval Medical Research Institute Report 96-05.

Survanshi, S. S.; P. K. Weathersby, and E. D. Thalmann. (1996). "Statistically based decompression tables X: Real-time decompression algorithm using a probabilistic model.". Naval Medical Research Institute Report 96-06.

Thalmann, E. D.; P. C. Kelleher, S. S. Survanshi, E. C. Parker, and P. K. Weathersby. (1999). "Statistically Based Decompression Tables XI: Manned Validation of the LE Probabilistic Model for Air and Nitrogen-Oxygen Diving.". Naval Medical Research Institute Report 99-01.

Survanshi, S. S.; E. C. Parker, E. D. Thalmann, and P. K. Weathersby. (1997). "Statistically based decompression tables XII: Volume I. Repetitive decompression tables for air and constant 0.7 ata PO2 in N2 using a probabilistic model.". Naval Medical Research Institute Report 97-36.

Survanshi, S. S.; E. C. Parker, E. D. Thalmann, and P. K. Weathersby. (1997). "Statistically based decompression tables XII: Volume II. Repetitive dive tables: Air.". Naval Medical Research Institute Report 97-36.

Survanshi, S. S.; E. C. Parker, E. D. Thalmann, and P. K. Weathersby. (1997). "Statistically based decompression tables XII: Volume III. Exceptional exposure tables: Air.". Naval Medical Research Institute Report 97-36.

Survanshi, S. S.; E. C. Parker, E. D. Thalmann, and P. K. Weathersby. (1997). "Statistically based decompression tables XII: Volume IV. Repetitive dive tables: 0.7 ATA PO2 in N2.". Naval Medical Research Institute Report 97-36.

Survanshi, S. S.; E. C. Parker, E. D. Thalmann, and P. K. Weathersby. (1997). "Statistically based decompression tables XII: Volume V. Exceptional exposure tables: 0.7 ATA PO2 in N2.". Naval Medical Research Institute Report 97-36.