Table 3 Average reduction (in %) for period (P) 2 and 3 for examinations with more than 20% reduction for period 2 including the average number of examinations for each period 2015–2019 as well as for 2020

 KUB (Kidney, ureters and bladder)

86.8

107

98

101

20

12

11

 Orthopantomography

47.5

168

174

167

10

78

80

 Sacroiliac joints ^ab

47.2

299

310

326

74

112

184

 Cervical spine

43.2

1417

1407

1319

466

610

816

 Sacrum and coccyx

36.8

297

275

234

74

138

172

 Chest ^b

30.4

23,868

23,265

22,715

9557

13,215

16,856

 Thoracic, lumbar, and sacral spine ^b

27.9

549

532

544

185

256

468

 Abdominal

27.5

754

738

761

330

418

597

 Lumbar and sacral spine^ab

26.8

4180

4244

4281

1382

2307

3440

 Thoracic and lumbar spine ^b

26.5

232

271

233

76

151

183

 Thoracic spine ^b

25.9

1184

1166

1111

446

684

909

 Ribs

22.4

297

285

265

124

185

226

 Shoulder

22.2

6901

6452

6118

2890

4140

5340

 Calf

19.6

2312

2261

2157

1092

1532

1877

 Foot ^b

19.6

11,463

12,315

13,551

4695

7565

11,211

 Hip

19.0

11,291

12,101

12,462

4085

7300

10,825

 Knee

18.4

12,262

13,002

13,347

4402

7721

11,967

 Total spine

16.5

714

733

737

203

494

644

 Hand

16.3

12,825

13,138

13,448

5638

8437

12,360

 Ankle ^b

13.8

8765

9262

9520

4226

6470

8573

 Upper arm

13.3

964

892

859

569

676

832

 Pelvis

13.2

8626

8954

9164

3348

5960

8677

 Wrist

12.7

9424

8903

9203

4892

6405

8902

 Clavicle

12.1

1352

1295

1395

642

983

1274

 Femur

11.7

814

796

791

376

599

747

 Enterography

85.4

451

535

448

42

42

77

 Colonography with fecal tagging

19.5

437

488

496

295

359

412

 Face ^b

17.6

473

477

488

230

326

422

 Sinuses ^b

15.5

2670

2542

2358

1392

1878

2187

 Lumbar and sacral spine^ab

13.8

416

432

435

204

311

390

 Pelvis and lower limb

81.1

207

263

261

22

35

44

 Thoracic spine ^b

60.4

642

626

575

212

203

231

 Sacroiliac joints ^b

55.7

693

729

691

218

260

298

 Face ^b

49.6

265

263

249

83

121

114

 Cervical spine ^b

27.5

3513

3513

3362

1970

2224

2502

 Head and MRA Brain ^b

18.1

171

187

181

96

132

144

 Lumbar and sacral spine^ab

17.4

7285

7620

7725

4589

5491

6401

 Hip

16.6

2034

2029

2028

1317

1429

1816

 Total spine ^b

16.5

686

743

733

432

529

621

 Knee^ab

14.3

7433

7560

7707

5047

5713

6766

 Calf

13.3

362

363

387

282

287

336

 Pelvis ^b

13.2

2301

2332

2283

1614

1752

2112

 Throat and neck ^b

71.9

457

542

482

65

112

129

 Liver, Gall Bladder, and Pancreas

53.3

610

721

652

114

198

351

 Axillar

52.7

615

782

640

171

256

318

 Pelvis

45.4

109

104

106

28

45

60

 Breast

43.0

1795

1953

1812

723

905

1024

 Abdomen and pelvis ^b

41.5

3540

3519

3331

813

1500

2165

 Fine needle aspiration cytology of the breast

40.0

482

505

502

222

271

277

 Liver Ultrasound Elastography

38.0

96

111

97

20

47

67

 Abdominal aorta

30.6

587

658

635

161

312

487

 Fine needle aspiration cytology of thyroid

29.0

198

186

210

80

113

148

 Carotid arteries

27.5

150

155

149

35

93

109

 Scrotum

27.5

1600

1620

1535

577

921

1212

 Kidneys

26.4

520

571

553

203

344

406

 Thyroid ^b

26.0

838

869

848

187

450

712

 Thigh

25.1

109

122

106

30

59

97

 Knee

24.7

180

183

189

89

120

140

 Urinary tract

24.6

1304

1352

1257

429

771

1057

 Liver

22.4

505

536

534

161

307

451

 Abdomen

21.5

1947

1937

1803

790

1178

1613

 Skin and subcutaneous

20.7

341

316

311

107

194

284

 Calf

16.8

133

135

149

48

91

126

 Bladder ultrasound with Post-void residual volume measure

16.7

142

140

140

66

73

146

 Lower limb veins ^b

12.8

925

970

1013

536

731

886