https://cw.fel.cvut.cz/b212/ 2026-04-21T03:08:28+0200 https://cw.fel.cvut.cz/b212/ https://cw.fel.cvut.cz/b212/lib/tpl/bulma-cw/images/favicon.ico text/html 2022-05-18T16:56:10+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/examquestions2022?rev=1652885770&do=diff Medical Imaging course exam topics This is a version for summer 2022. Besides the topics mentioned below, you should also know the topics explained in the laboratory sessions. I might also ask you to do simple calculations using mathematical formulas that we talked about. text/html 2022-05-04T10:18:46+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/labs?rev=1651652326&do=diff Cvičení / Lab organization This is the main wiki page for labs in Medical Imaging Systems (codes BAM33ZSL, BEAM33ZSL, A6M33ZSL). Course tutors: * Sumit Kaushik <kaushsum@fel.cvut.cz> * Jiří Anýž <anyzjiri@fel.cvut.cz> * Jan Šanda <jan.sanda@lfmotol.cuni.cz> Plán cvičení (Timetable and topics) No. Date text/html 2022-02-10T13:25:53+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/labs2019_01_matlab?rev=1644495953&do=diff Lab 01 : Introduction / MATLAB Topics: HW01 Assignment Homework HW01 has two sub-tasks, follow the emphasized links to get to the detailed description. [2 pts][3 pts] Upload your report in PDF format to BRUTE to the assignment L03-Matlab:Statistics. Please name the PDF file as $y = -3 \cdot x + 1$$Y = A \cdot X$$A$$B = X \backslash Y$$z = \frac{\sin(\sqrt(x^2 + y^2))}{\sqrt(x^2 + y^2))}$$x, y \in (-15, 15)$$z = \sin(5*x) + \cos(4*y)$$x, y \in (-3, 3)$ text/html 2022-02-07T16:19:55+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/labs2020_02_microscopy?rev=1644247195&do=diff Lab 02 : Microscopy Topics: ExercisesStain normalization HW02 Assignment Homework HW02 has two parts, detailed description follows: [2 pts][3 pts] (A) Excercises Important equations optical distance$d = 250 mm$magnification$Z = \frac{y'}{y} = -\frac{a'}{a}$lense maker's formula$\frac{1}{a} + \frac{1}{a'} = \frac{1}{f}$$a, a'$magnification of a microscope$$ Z = \frac{\Delta}{f_{ob}} \frac{d}{f_{oc}} $$$d = 1.22 \cdot \frac{\lambda}{2 \cdot NA}$$f=0.1~m, y=0.06~m, a=0.12~m$$Z = \frac{y'}{y} =… text/html 2022-04-06T10:48:30+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/labs2020_03_ctimages?rev=1649234910&do=diff Lab 08 : CT Images Topics: VisualizationClassification HW03 Homework [3 pts][2 pts] (A) CT Data Processing Download the [ MITK Workbench] application. Load the testing image . Optionally you can try data lowdose_CT.nii.gz from <https://cmp.felk.cvut.cz/~herinjan/dt45knp3/>, if the data are too large for your PC to process, you can try the smaller $[W_l, W_u]$$W_l$$W_u$$[W_l, W_u]$$(W_u + W_l) / 2$$W_u - W_l$$I(x,y)$$\theta_l \leq I(x, y) \leq \theta_u$ text/html 2022-05-03T13:43:18+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/labs2020_04_fwdproj?rev=1651578198&do=diff Lab 09 : CT Reconstruction, forward projection, backprojection Topics -- Math of CT images slides [ lab09_presentation.pdf] HW09 Assignment 1. Forward projection The homework has four consecutive parts. When completed, you will have your own implementation of the forward projection ($\theta$$x, y$$p$$q$$p$$q$$\theta$\begin{align} p &=& x \cdot \cos \theta + y \cdot \sin \theta \\ q &=& -x \cdot \sin \theta + y \cdot \cos \theta \end{align}$[-p_m, p_m] \times [-q_m, q_m]$$(x, y) \in [-x_m,… text/html 2022-04-28T15:36:28+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/labs2020_06_iterrecon?rev=1651152988&do=diff Lab 10: Algebraic reconstruction technique Radon transform Radon transform is a transform that is used for example in computed tomography. Revise the equations describing the Radon transform in Radon transform equations. In the previous lab we used the Radon transform in a continuous space and we discritized the equation in order to apply it to digital images. Another form of the Radon transform for digital images is in Equation 1. This form is more suitable for the reconstruction of a sin… text/html 2022-05-13T10:05:07+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/labs2020_07_ultrasound?rev=1652429107&do=diff Lab 11 : Ultrasound theory Homework [1 pt][4 pts] US exercises Used formulas: $\lambda = \frac{c}{f}$$c = \frac{1}{\sqrt{\rho K}}$$K$$E$$Z_t = \rho c$$R = \frac{(Z_1 - Z_2)^2}{(Z_1 + Z_2)^2}$ 1. Signal propagation 1.1 The time delay between transmission and the arrival of the reflected wave of a signal using ultrasound travelling through a piece of fat tissue was $0.13 ms$$1450 m/s$$2 \cdot d$$0.13 ms$$$d = \frac {c_{fat} \cdot t_d} {2} = \frac{1450 m/s \cdot 0.00013 s} {2} = 0.09425 m$$$0… text/html 2022-05-18T08:51:32+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/labs2020_08_registrace?rev=1652856692&do=diff Lab 08 : Image Registration Homework text/html 2022-02-07T16:19:55+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/labs2020_09_mribloch?rev=1644247195&do=diff Lab 9 : MRI Basics V dnešním cvičení se budeme zabývat základními principy magnetické rezonance - Magnetic Resonance Imaging (MRI). Projděte si slajdy/prezentaci z přednášek MRI 1 (8.4.) a MRI 2 (15.4.). Dále doporučuji velmi bohatý soubor informací k MRI, který obsahuje i velké množství ilustrací a animací, dostuná na stránkách $^\circ$$T_1, T_2$$M_{xy}$$M_z$$90^{\circ}$$T_1$$T_2$$T_2$$T_1$$$U = \rho \cdot (1 - e^{-\frac{TR}{T_1}}) \cdot e^{-\frac{TE}{T_2}}$$$f = 42.58\cdot 10^6 \cdot B(x)$$B_… text/html 2022-02-07T16:19:54+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/labs2020_10_mrikspace?rev=1644247194&do=diff V předchozím cvičení jsme se zabývali závislostí signálu jednoduché sekvence s opakovými RF pulsy na parameterech TR/TE. Průběh signálu jsme uvažovali pro jednu látku, bez prostorového umístění. Ostatně při této sekvenci bychom měřili $G_f$$B_0$$x$$B(x)$$x$$f = \gamma B(x)$$x$$G_\phi$$\omega_1$$\gamma \cdot (B_0 + B_1) $$\omega_0$$G_y$$y$$(k_x, k_y)$$k_x = -\gamma G_f t$$k_y = -\gamma G_\phi t$$x$$k_x$$y$$k_y$$\rho$$T_1$$T_2$$T_1$$T_2$$\rho$$TE, TR$$K$$K$$T_1$$T_2$$\rho$$TR$$TE$$\rho, T_1, T_2$$… text/html 2022-02-09T11:52:43+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/labs2020_11_mriartifacts?rev=1644403963&do=diff Lab 11 : Diffusion weighted MRI Today we look at Diffusion-weighted Imaging - one specific MR modality. With dMRI, we can use gradient direction to measure the movement of molecules in that direction. If there is no obstacle at the measuring point, then the signals at different gradients will not differ. This is not the case when we have obstacles in our way, such as axons of nerve connections. The diffusion takes place along the unrestricted direction and gets restricted in transverse directio… text/html 2022-02-07T16:19:54+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/labs2020_12_fmrieval?rev=1644247194&do=diff Lab 12 - fMRI V dnešním cvičení se podíváme na data z funkční magnetické rezonance (fMRI) a bude nás zajímat detekce regionů v mozku, které jsou aktivovány při poslouchání dvouslabičných slov. Aktivita mozku je měřena pomocí fMRI, konkrétněji měříme BOLD signál při resting-state fMRI sekvenci. Statisticky významné rozdíly mezi běžnou aktivitou ($t$$\bar{x}_a, \bar{x}_r$$\bar{x}$$S^2_a$$S^2_r$$\bar{x}$$\alpha=0.01$$53 \times 63 \times 52$$3~mm$$T$$Y$$Y(:,:,:,1:6)$$Y(:,:,:,7:12)$$\alpha$$$\mathca… text/html 2022-02-07T16:19:54+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/labs2020_13_petct?rev=1644247194&do=diff Lab 13 Pozitronová emisní tomografie (PET) - měření a rekonstrukce dát Téma cvičení je měření a rekonstrukce dat pozitronové emisní tomografii (PET). Jádrem zobrazování PET je detekce dvojice fotonů, které vzniknou následkem anihilace pozitronu vzniklého při rozpadu radiofarmaka v pacientově těle. Fotony letí od sebe po přímce a v ideálním případě je jejich průlet $N$$T_i$$T_b$$T_e$$D$$r$$\sigma^2$$n$$\tau_r$$\Delta N$$\Delta N$$t=0$$T_i$$N_0 =n \cdot N_A$$N_A$$N_A=6.0221415\cdot 10^{23}$$T_i$$… text/html 2022-05-30T09:08:03+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/labs2020_14_prikaldy_qa?rev=1653894483&do=diff Lab 14 : Exercises, Questions & Answers We have already practiced some math problems, see Lab 7: Ultrasound theory and there are some examples in the microscopy Lab 2 : Microscopy (optics), which was not part of the sylabus this year, but you might still find the exercises there useful. We will continue with some more problems today.$E = hf = h \frac{c}{\lambda} \, ,$$\frac{1}{2} = \textrm{e}^{-\mu d}$$100~nm$$12~eV$$2~nm$$10~keV$$E$$10~W/cm^2$$10~cm$$2~cm$$\mu_w = 0.22~cm^{-1}$$\mu_t$$1/2 = … text/html 2022-02-10T14:43:16+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/labs2022_01_matlab?rev=1644500596&do=diff Lab 01 : Introduction / MATLAB Topics: HW01 Assignment For the homework, HW01 follow the emphasized links to get to the detailed description. [5 pts] Upload your report in PDF format to BRUTE to the assignment L01-Matlab introduction. Please name the PDF file as $y = -3 \cdot x + 1$$XA = Y $$A$$2\times 1 $$X$$51\times2$$x \in [0, 5]$$Y$$51\times1$$y$$A = X \backslash Y$$z = \frac{\sin(\sqrt(x^2 + y^2))}{\sqrt(x^2 + y^2))}$$x, y \in (-15, 15)$$z = \sin(5*x) + \cos(4*y)$$x, y \in (-3, 3)$ text/html 2022-02-10T10:01:15+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/labs2022_02_matlabcellseg?rev=1644483675&do=diff Lab 02 : MATLAB: Segmentation Topics: HW02 Assignment For the homework (HW02), follow the emphasized links to get to the detailed description. [5 pts] Upload your report in PDF format to BRUTE to the assignment L02-segmentation. Please name the PDF file as text/html 2022-02-24T13:40:41+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/labs2022_03_matlab_statistics?rev=1645706441&do=diff Lab 03 : Statistical significance tests with MATLAB Topics: HW03 Assignment For the homework HW03 tasks, follow the emphasized links to get to the detailed description. [5.0 pts][2.0 pts] Upload your report in PDF format and code zipped in a folder to $x$$y$$\alpha$$\alpha=0.01$$n$$m$$s$$n=30$$m$$m=30$$m=30$$m=20$$H0$$\alpha$$\mu_{B}-\mu_{A}\leq15$$$ t=\frac{(x_B-x_A)-(\mu_B-\mu_A)}{\sqrt{(\frac{s_B^2}{n_B} + \frac{s_A^2}{n_A})}}$$$x$$s$$\mu$$n$ text/html 2022-02-16T11:17:54+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/labs2022_04_microscopy?rev=1645006674&do=diff Lab 04 : Microscopy Topics: ExercisesStain normalization HW04 Assignment Homework has two parts, detailed description follows: [2 pts][3 pts] (A) Excercises Important equations optical distance$d = 250 mm$magnification$Z = \frac{y'}{y} = -\frac{a'}{a}$lense maker's formula$\frac{1}{a} + \frac{1}{a'} = \frac{1}{f}$$a, a'$magnification of a microscope$$ Z = \frac{\Delta}{f_{ob}} \frac{d}{f_{oc}} $$$d = 1.22 \cdot \frac{\lambda}{2 \cdot NA}$$f=0.1~m, y=0.06~m, a=0.12~m$$Z = \frac{y'}{y} = \fra… text/html 2022-03-21T09:00:17+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/labs2022_07_dtmri?rev=1647849617&do=diff Lab 07 : Diffusion weighted MRI Today we look at Diffusion-weighted Imaging - one specific MR modality. With dMRI, we can use gradient direction to measure the movement of molecules in that direction. If there is no obstacle at the measuring point, then the signals at different gradients will not differ. This is not the case when we have obstacles in our way, such as axons of nerve connections. The diffusion takes place along the unrestricted direction and gets restricted in transverse directio… text/html 2022-05-18T12:12:51+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/lessons?rev=1652868771&do=diff ZSL Zobrazovací systémy v lékařství / Medical Imaging Systems Přednášky / Lectures Wednesday (and exceptionally also Friday), 9:15-10:45, room KN:E-126, Charles square. Přednášející/Lecturer(s): Jan Kybic, Jan Petr (JP), Petr Páta (PP) The schedule is preliminary and may change. Study materials will appear here before the lecture. text/html 2022-02-14T16:18:50+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/start?rev=1644851930&do=diff BAM33ZSL / A6M33ZSL - Zobrazovací systémy v lékařství / Medical Imaging Systems Obsahem předmětu je koncepce, vlastnosti a struktura zobrazovacích systémů užívaných v současné době v lékařství. Jedná se 2D mikroskopické, rentgenové a ultrazvukové zobrazovací systémy včetně dopplerovského ultrazvuku. Dále se budeme zabývat tomografickými (3D) systémy: počítačovou tomografií (CT), magnetickou rezonancí (MRI) včetně funkční MR a nukleárními zobrazovacími metodami (PET,SPECT).… text/html 2022-05-18T15:31:36+0200 Anonymous (anonymous@undisclosed.example.com) https://cw.fel.cvut.cz/b212/courses/zsl/zkouskazsl?rev=1652880696&do=diff Zkouška z předmětu Zobrazovací systémy v lékařství / Medical Imaging Systems course exam Termíny zkoušek budou oznámeny. The exam dates are: 27.5.10.6.22.6. Podrobnosti * Zkoušku tvoří písemný test, který lze psát česky i anglicky.