deletions | additions       diff --git a/layout.md b/layout.md  index 84a4005..19b3fb8 100644  --- a/layout.md  +++ b/layout.md 
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section_Pulse_Sequences__.tex  subsection_FLASH__.tex  subsubsection_Signal_Expression_S_propto__.tex  subsubsection_Signal_Formula_S_propto__.tex  subsubsection_References_cite_frahm_rapid_1986_frahm_rapid_1986__.tex  subsection_MP2RAGE__.tex  diff --git a/subsubsection_Signal_Formula_S_propto__.tex b/subsubsection_Signal_Formula_S_propto__.tex  deleted file mode 100644  index 318f28b..0000000  --- a/subsubsection_Signal_Formula_S_propto__.tex  +++ /dev/null 
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\subsubsection{Signal Formula}  \[  S \propto V M_0\ \mathrm{e}^{-{TE}/{T_2^*}}\ \sin{\alpha}  \frac{1 - \mathrm{e}^{-{TR}/{T_1}}}{1 - \cos{\alpha}\ \mathrm{e}^{-{TR}/{T_1}}}  \]  where:  \begin{itemize}  \item $S$: signal intensity  \item $V$: imaged volume  \item $M_0$: proton density  \item $TE$: echo time  \item $TR$: repetition time  \item $\alpha$: flip angle  \item $T_1$: longitudinal relaxation time  \item $T_2^*$: effective transverse relaxation time  \end{itemize}