“…Several of these examinations already have established referral criteria or have recommendations against them in the Choosing Wisely list, however this review show that these are still being used in clinical practice, and more examinations might need referral guidelines. The most commonly practices reported as low-value was head CT in several clinical queries (especially related to minor head injury [ 20 – 33 , 36 , 37 , 40 – 53 , 55 , 56 , 286 – 293 ]), chest X-ray for routine checkup or follow-ups [ 78 – 113 , 118 – 120 , 339 – 343 ], trauma CT in patients without clinical symptoms or as repeat scans [ 227 – 232 , 287 , 314 – 322 ], and skeletal X-rays in non-traumatic pain or in fracture follow-ups [ 132 , 138 , 139 , 151 – 156 , 160 – 167 , 169 , 323 – 337 ]. The following were the most frequently reported low-value examinations: imaging in low back pain [ 121 – 131 ] and knee MRI without red flags [ 121 , 141 – 147 ], staging and follow-up in several types of cancer (X-ray, CT, MRI and nuclear medicine) [ 58 , 116 , 172 , 199 – 203 , 209 , 234 – 262 ], abdominal CT in self-limiting episode of suspected urolithiasis [ 190 , 204 – 206 ], chest CTA [ 210 – 216 ] and ultrasound lower limb veins in patients with low risk of thrombosis [ 217 – 221 ] were most prominent among adult populations.…”