scholarly journals Top Tree Compression of Tries

Algorithmica ◽  
2021 ◽  
Author(s):  
Philip Bille ◽  
Paweł Gawrychowski ◽  
Inge Li Gørtz ◽  
Gad M. Landau ◽  
Oren Weimann
Keyword(s):  
Tree Compression

Significance of lung anomalies in fetuses affected by tetralogy of Fallot with absent pulmonary valve syndrome

2017 ◽  
Vol 27 (9) ◽  
pp. 1740-1747 ◽  
Author(s):  
Estelle Tenisch ◽  
Marie-Josée Raboisson ◽  
Françoise Rypens ◽  
Julie Déry ◽  
Andrée Grignon ◽  
...  
Keyword(s):  
Tetralogy Of Fallot ◽  
Pulmonary Valve ◽  
Pulmonary Arteries ◽  
Fetal Lung ◽  
Bronchial Tree ◽  
Normal Lung ◽  
Absent Pulmonary Valve ◽  
Tree Compression ◽  
Significant Compression ◽  
Absent Pulmonary Valve Syndrome

AbstractObjectivesTetralogy of Fallot with absent pulmonary valve syndrome is a rare form of tetralogy of Fallot with dilatation of large pulmonary arteries. Prognosis is related to the severity of the cardiac malformation and to bronchial tree compression by dilated pulmonary arteries. This study analyses the prenatal echographic lung appearance in fetuses with tetralogy of Fallot with absent pulmonary valve and discusses its significance.MethodsWe carried out a retrospective review of fetal and postnatal files of nine fetuses diagnosed with tetralogy of Fallot with absent pulmonary valve syndrome in our institution. Correlations of prenatal ultrasound and cardiac imaging findings were obtained with outcome.ResultsAbnormal heterogeneous fetal lung echogenicity was detected in eight cases out of nine, always associated with significant lobar arterial dilatation. This aspect was well correlated with postnatal imaging and outcome in the four neonatal cases. The only fetus with normal lung echogenicity also had lower degree of pulmonary artery dilatation in the series.ConclusionsThis study demonstrates that a heterogeneous ultrasound appearance of the fetal lungs can be detected in utero in the most severe cases. This aspect suggests an already significant compression of the fetal bronchial tree by the dilated arteries that may have prognostic implications.

scholarly journals Tree Compression with Top Trees

2013 ◽  
pp. 160-171 ◽  
Author(s):  
Philip Bille ◽  
Inge Li Gørtz ◽  
Gad M. Landau ◽  
Oren Weimann
Keyword(s):  
Tree Compression

Improving the Partial Product Tree Compression on Signed Radix-2m Parallel Multipliers

2020 ◽  
Author(s):  
Leandro M. G. Rocha ◽  
Morgana Macedo ◽  
Guilherme Paim ◽  
Eduardo Costa ◽  
Sergio Bampi
Keyword(s):  
Partial Product ◽  
Tree Compression

Tree Compression and Indexing

2008 ◽  
pp. 964-968 ◽  
Author(s):  
Paolo Ferragina ◽  
S. Srinivasa Rao
Keyword(s):  
Tree Compression

scholarly journals Tree compression with top trees

2015 ◽  
Vol 243 ◽  
pp. 166-177 ◽  
Author(s):  
Philip Bille ◽  
Inge Li Gørtz ◽  
Gad M. Landau ◽  
Oren Weimann
Keyword(s):  
Tree Compression

scholarly journals Tree Compression with Top Trees Revisited

2015 ◽  
pp. 15-27 ◽  
Author(s):  
Lorenz Hübschle-Schneider ◽  
Rajeev Raman
Keyword(s):  
Tree Compression
Sign in / Sign up

Export Citation Format

Share Document