0000000001299233
AUTHOR
S. Sack
showing 10 related works from this author
Echocardiographic and angiographic evaluation of left ventricular function during percutaneous transluminal aortic valvuloplasty.
1992
Transesophageal echocardiography was used to study the effect of the balloon inflation on left ventricular function in 20 patients with critical aortic stenosis undergoing balloon valvuloplasty. Balloon inflation caused an increase of end-diastolic (15% to 34%) and end-systolic (57% to 72%) left ventricular volume. Left ventricular wall stress increased from 30 +/- 10 x 10(3) dyn/cm2 at diastole and 121 +/- 40 x 10(3) dyn/cm2 at systole to 44 +/- 11 x 10(3) dyn/cm2 and 191 +/- 55 x 10(3) dyn/cm2, respectively, when the balloon was inflated (P less than 0.05). Turbulent regurgitant jet across the mitral valve increased from 15 +/- 2% to 25 +/- 3% during balloon inflation (P less than 0.01). …
In-medium modifications of the pi pi interaction in photon-induced reactions
2002
Differential cross sections of the reactions $(\gamma,\pi^\circ\pi^\circ)$ and $(\gamma,\pi^\circ\pi^++\pi^\circ\pi^-)$ have been measured for several nuclei ($^1$H,$^{12}$C, and $^{\rm nat}$Pb) at an incident-photon energy of $E_{\gamma}$=400-460 MeV at the tagged-photon facility at MAMI-B using the TAPS spectrometer. A significant nuclear-mass dependence of the $\pi\pi$ invariant-mass distribution is found in the $\pi^\circ\pi^\circ$ channel. This dependence is not observed in the $\pi^\circ\pi^{+/-}$ channel and is consistent with an in-medium modification of the $\pi\pi$ interaction in the $I$=$J$=0 channel. The data are compared to $\pi$-induced measurements and to calculations within …
Assessment of left ventricular function during aortic balloon valvuloplasty by transesophageal echocardiography
1989
Several reports have documented the feasability and utility of balloon aortic valvuloplasty as a palliative treatment for high-surgical-risk patients with critical aortic valve stenosis (1–3).
The Reactionγp→π0γ′pand the Magnetic Dipole Moment of theΔ+(1232)Resonance
2002
The reaction $\ensuremath{\gamma}p\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}{\ensuremath{\gamma}}^{\ensuremath{'}}p$ has been measured with the TAPS calorimeter at the Mainz Microtron accelerator facility MAMI for energies between $\sqrt{s}=1221--1331\text{ }\text{ }\mathrm{M}\mathrm{e}\mathrm{V}$. The cross section's differential in angle and energy have been determined for the photon ${\ensuremath{\gamma}}^{\ensuremath{'}}$ in three bins of the excitation energy. This reaction channel provides access to the magnetic dipole moment of the ${\ensuremath{\Delta}}^{+}(1232)$ resonance and, for the first time, a value of ${\ensuremath{\mu}}_{{\ensuremath{\Delta}}^{+}}=\mathbf{[}{2.7}_{\ensu…
"Table 6" of "In-medium modifications of the pi pi interaction in photon-induced reactions."
2005
Differential cross section for PI0PI+/- production with a Lead target. Errors are statistical only.
"Table 2" of "In-medium modifications of the pi pi interaction in photon-induced reactions."
2005
Differential cross section for PI0PI0 production with a Carbon target. Errors are statistical only.
"Table 1" of "In-medium modifications of the pi pi interaction in photon-induced reactions."
2005
Differential cross section for PI0PI0 production with a proton target. Errors are statistical only. Note that the data given in this table are sightly different (newer) than the data points presented in the paper.
"Table 4" of "In-medium modifications of the pi pi interaction in photon-induced reactions."
2005
Differential cross section for PI0PI+ production with a proton target. Errors are statistical only. Note that the data given in this table are sightly different (newer) than the data points presented in the paper.
"Table 3" of "In-medium modifications of the pi pi interaction in photon-induced reactions."
2005
Differential cross section for PI0PI0 production with a Lead target. Errors are statistical only.
"Table 5" of "In-medium modifications of the pi pi interaction in photon-induced reactions."
2005
Differential cross section for PI0PI+/- production with a Carbon target. Errors are statistical only.