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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1864 1
1895 1
1898 1
1913 1
1915 1
1916 2
1917 1
1918 1
1919 2
1920 2
1923 1
1925 1
1926 1
1927 1
1928 3
1929 1
1931 1
1932 1
1935 2
1936 1
1937 1
1938 3
1939 3
1940 1
1941 1
1942 1
1943 2
1944 3
1945 1
1946 6
1947 9
1948 9
1949 12
1950 7
1951 8
1952 7
1953 6
1954 6
1955 7
1956 19
1957 10
1958 6
1959 16
1960 14
1961 16
1962 21
1963 28
1964 25
1965 31
1966 41
1967 47
1968 58
1969 73
1970 82
1971 86
1972 81
1973 68
1974 82
1975 258
1976 274
1977 260
1978 255
1979 298
1980 306
1981 276
1982 280
1983 319
1984 355
1985 359
1986 335
1987 379
1988 386
1989 463
1990 456
1991 492
1992 520
1993 572
1994 576
1995 592
1996 659
1997 655
1998 731
1999 819
2000 1024
2001 1082
2002 1175
2003 1190
2004 1533
2005 1910
2006 2094
2007 2221
2008 2381
2009 2699
2010 2998
2011 3219
2012 3557
2013 3810
2014 4031
2015 4076
2016 4360
2017 4612
2018 4961
2019 5056
2020 5657
2021 6063
2022 6386
2023 6295
2024 2626

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88,147 results

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Page 1
Sphericity of lymph nodes using 3D-CT predicts metastasis in lung cancer patients.
Sugai K, Sekine Y, Kawamura T, Yanagihara T, Saeki Y, Kitazawa S, Kobayashi N, Kikuchi S, Goto Y, Ichimura H, Sato Y. Sugai K, et al. Cancer Imaging. 2023 Dec 17;23(1):124. doi: 10.1186/s40644-023-00635-x. Cancer Imaging. 2023. PMID: 38105231 Free PMC article. Review.
For lymph nodes with a short-axis diameter 5 mm, sphericity 0.60 identified metastasis with 84.1% sensitivity and 89.3% specificity. CONCLUSION: By using 3D-CT analysis to examine sphericity, we showed that metastatic lymph nodes became spherical. ...
For lymph nodes with a short-axis diameter 5 mm, sphericity 0.60 identified metastasis with 84.1% sensitivity and 89.3% specificity. …
Sphericity of Periapical Lesion and Its Relation to the Novel CBCT Periapical Volume Index.
Boubaris M, Cameron A, Love R, George R. Boubaris M, et al. J Endod. 2022 Nov;48(11):1395-1399. doi: 10.1016/j.joen.2022.08.009. Epub 2022 Sep 7. J Endod. 2022. PMID: 36087762
RESULTS: The mean sphericity of periapical lesions was 62%. Periapical lesions with larger CBCTPAVI scores were significantly less spherical than lesions with smaller CBCTPAVI scores. CONCLUSIONS: Periapical lesions of endodontic origin are mostly semi-spherical …
RESULTS: The mean sphericity of periapical lesions was 62%. Periapical lesions with larger CBCTPAVI scores were significantly less …
Do femoral or salter innominate osteotomies improve femoral head sphericity in Legg-Calve-Perthes disease? A meta-analysis.
Saran N, Varghese R, Mulpuri K. Saran N, et al. Clin Orthop Relat Res. 2012 Sep;470(9):2383-93. doi: 10.1007/s11999-012-2326-3. Clin Orthop Relat Res. 2012. PMID: 22467420 Free PMC article. Review.
BACKGROUND: Recently, the authors of two prospective multicenter observational studies recommended surgery to improve head sphericity in older children, whereas large retrospective observational studies suggest that surgery does not improve head sphericity in older …
BACKGROUND: Recently, the authors of two prospective multicenter observational studies recommended surgery to improve head sphericity …
Sphericity estimation bias for repeated measures designs in simulation studies.
Bono R, Arnau J, Blanca MJ, Alarcón R. Bono R, et al. Behav Res Methods. 2016 Dec;48(4):1621-1630. doi: 10.3758/s13428-015-0673-1. Behav Res Methods. 2016. PMID: 26489849
In this study, we explored the accuracy of sphericity estimation and analyzed how the sphericity of covariance matrices may be affected when the latter are derived from simulated data. We analyzed the consequences that normal and nonnormal data generated from an uns …
In this study, we explored the accuracy of sphericity estimation and analyzed how the sphericity of covariance matrices may be …
Left atrial sphericity in relation to atrial strain and strain rate in atrial fibrillation patients.
Hopman LHGA, Bhagirath P, Mulder MJ, Demirkiran A, Mathari SE, van der Laan AM, van Rossum AC, Kemme MJB, Allaart CP, Götte MJW. Hopman LHGA, et al. Int J Cardiovasc Imaging. 2023 Sep;39(9):1753-1763. doi: 10.1007/s10554-023-02866-2. Epub 2023 May 31. Int J Cardiovasc Imaging. 2023. PMID: 37515682 Free PMC article.
This study examined the association between LA sphericity, and LA longitudinal strain and strain rate measured by feature-tracking in AF patients. ...CONCLUSIONS: LA passive strain is significantly impaired in AF patients with a spherical LA, though this relation wa …
This study examined the association between LA sphericity, and LA longitudinal strain and strain rate measured by feature-tracking in …
Evaluation of the sphericity index of the fetal heart during middle and late pregnancy using fetalHQ.
Luo Y, Xiao F, Long C, Kuang H, Jiang M, Zhou C, Cui Q, Ye Y, Zhang S, Zhang M. Luo Y, et al. J Matern Fetal Neonatal Med. 2022 Dec;35(25):8006-8011. doi: 10.1080/14767058.2021.1940934. Epub 2021 Jun 23. J Matern Fetal Neonatal Med. 2022. PMID: 34162291
OBJECTIVE: To explore the feasibility of the fetal heart quantitative technique (fetalHQ) for evaluating the sphericity index (SI) of the fetal heart during middle and late pregnancy. ...In segments 1-9, the SI of the right ventricle was smaller than that of the left ventr …
OBJECTIVE: To explore the feasibility of the fetal heart quantitative technique (fetalHQ) for evaluating the sphericity index (SI) of …
Timing of Surgery for Asymptomatic Primary Mitral Regurgitation: Possible Value of Early, Serial Measurements of Left Ventricular Sphericity.
Stanley A, Athanasuleas C. Stanley A, et al. Curr Cardiol Rev. 2024;20(2):93-101. doi: 10.2174/011573403X277223240206062319. Curr Cardiol Rev. 2024. PMID: 38351687 Review.
During the early compensated stage, the ventricle's initial response to the volume overload is an asymmetric increase in the diastolic short axis dimension, accomplished by a diastolic shift of the interventricular septum into the right ventricular cavity, creating a more sphe …
During the early compensated stage, the ventricle's initial response to the volume overload is an asymmetric increase in the diastolic short …
Left ventricular sphericity independently predicts appropriate implantable cardioverter-defibrillator therapy.
Levine YC, Matos J, Rosenberg MA, Manning WJ, Josephson ME, Buxton AE. Levine YC, et al. Heart Rhythm. 2016 Feb;13(2):490-7. doi: 10.1016/j.hrthm.2015.09.022. Epub 2015 Sep 25. Heart Rhythm. 2016. PMID: 26409099
OBJECTIVE: The purpose of this study was to determine whether a transthoracic echocardiographic (TTE) marker of spherical left ventricular (LV) remodeling is associated with appropriate implantable cardioverter-defibrillator (ICD) therapy in patients with primary preventio …
OBJECTIVE: The purpose of this study was to determine whether a transthoracic echocardiographic (TTE) marker of spherical left ventri …
Impact of Left Atrial Sphericity Index on the Outcome of Catheter Ablation for Atrial Fibrillation.
Shi J, Xu S, Chen L, Wu B, Yang K, Chen S, Zhou D, Zhang B, Xuan T, Hu X. Shi J, et al. J Cardiovasc Transl Res. 2021 Oct;14(5):912-920. doi: 10.1007/s12265-020-10093-6. Epub 2021 Jan 6. J Cardiovasc Transl Res. 2021. PMID: 33409962
Left atrial sphericity index (LASI) is one significant geometric remodeling parameter to evaluate the prognosis of atrial fibrillation (AF). ...LASI was calculated as the ratio of left atrial maximum volume to spherical volume. After 1-year follow-up, 56 patients (2 …
Left atrial sphericity index (LASI) is one significant geometric remodeling parameter to evaluate the prognosis of atrial fibrillatio …
Influence of Sphericity on Surface Termination of Icosahedral Colloidal Clusters.
Choi YH, Lee J, Amstad E, Kim SH. Choi YH, et al. Small. 2024 May;20(20):e2309512. doi: 10.1002/smll.202309512. Epub 2023 Dec 10. Small. 2024. PMID: 38072633
Intriguingly, the number of layers in the anti-Mackay shells, or surface termination, appears to more strongly depend on the sphericity of the clusters than on the deviation in the particle count from an ideal icosahedral cluster. This result suggests that the sphericit …
Intriguingly, the number of layers in the anti-Mackay shells, or surface termination, appears to more strongly depend on the sphericity …
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