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Table 2 Breath-hold durations for PIBH and PEBH during sessions MRI1 and MRI2

From: Quantifying the reduction of respiratory motion by mechanical ventilation with MRI for radiotherapy

Volunteer

MRI1

MRI2

Duration (min)

Duration (min)

PIBH

PEBH

PIBH

PEBH

V1

7.0

4.4

7.5

6.1

V2

2.0

2.0

3.3

1.8

V3

4.3

3.6

4.1

4.2

V4

5.3

4.8

4.9

4.7

V5

7.1

6.2

8.0

6.4

V6

7.1

6.0

5.3

5.0

V7

7.7

6.2

7.1

5.3

V8

7.4

7.9

6.9

7.8

V9

4.8

7.1

6.3

5.3

V10

6.1

5.5

5.5

5.6

V11

7.3

7.6

9.3

8.4

V12

7.4

5.0

8.4

7.6

V13

5.3

3.9

5.0

5.2

V14

8.1

7.0

10.6

8.1

V15

11.5

10.2

11.1

8.6

Median

7.1

6.0

6.9

5.6

Min

2.0

2.0

3.3

1.8

Max

11.5

10.2

11.1

8.6

  1. PIBH: prolonged inspiration breath-holding, PEBH: prolonged expiration breath-holding