Selected technical factors affecting pulmonary nodule measurement
| Study author and year | Technical factor | Effect on nodule measurement |
|---|---|---|
| Honda et al (2007)338 Nietert et al (2009)339 Petrou et al (2007)340 Sinsuat et al (2011)325 Goo et al (2015)337 | Section thickness | Thin section (0.625, 1.25 mm) more reproducible than 2.5 mm and 5 mm Radiologists more likely to miss nodules <5 mm on 10 mm sections than 2 mm |
| Honda et al (2007)338 | Reconstruction algorithm | High spatial frequency algorithm and bone algorithm increased volume |
| Honda et al (2007)338 | Overlapping reconstruction | Non-overlapping increased measured volume |
| Petkovska et al (2007)341 | Lung volume | Nodule diameter and volume varied non-uniformly (some increased and some decreased with increasing lung volume from RV to TLC) |
| Honda et al (2007)342 | Intravenous contrast | Minimal increase in measured volume after contrast |
RV, residual volume; TLC, total lung capacity.