Skip to main content

Table 2 Coefficient of variation (mean ± standard deviation) of myocardium counts for different methods and acquisition times at rest

From: Comparison of deep learning-based denoising methods in cardiac SPECT

Acquisition time

Method

CoV [%]

p value versus full time OSEM

p value versus reduced time OSEM

OSEM

CNN

RES

UNET

cGAN

Full

21.7 ± 4.0

 

 

Half

22.1 ± 4.4

20.7 ± 3.8

20.4 ± 3.8

20.7 ± 4.3

19.0 ± 3.4

 

0.1560

0.0184

0.0037

0.0237

0.0011

 

0.0006

0.0002

 < 0.0001

0.0011

Quarter

22.8 ± 3.9

21.1 ± 3.5

20.8 ± 3.5

21.1 ± 4.0

19.5 ± 3.0

 

0.0028

0.3314

0.1004

0.2465

0.0068

 

0.0008

< 0.0001

0.0003

0.0004