Bachmann W
HNO. 1993 Jan;41(1):19-23.
We have developed a new method for the clinical evaluation of nasal permeability by comparing flow (Vt) and subjectively estimated patency (D). In a coordinate system Vt is marked on the y-axis and D is recorded on the x-axis. The y-axis is separated into an operative and a non-operative part. The limit of Vt is 700 cm3/s. Four quadrants are produced, in which quadrant I is a conformity between the non-operative part of the flow and the value estimated by the patient (showing that no operative intervention is indicated). Conformity between the operative part and estimated value in quadrant III means that an operation is indicated. Discrepancies exist in quadrants II and IV and designate conservative therapy. Since clear directions for treatment are possible from each quadrant, the principle is easily programmable for use in a microprocessor, which is small and portable.
我们开发了一种通过比较流量（Vt）和主观估计的通畅度（D）来对鼻腔通透性进行临床评估的新方法。在一个坐标系中，Vt标记在y轴上，D记录在x轴上。y轴分为手术部分和非手术部分。Vt的限值为700 cm³/s。由此产生四个象限，其中象限I表示流量的非手术部分与患者估计值相符（表明无需手术干预）。象限III中手术部分与估计值相符意味着需要进行手术。象限II和IV中存在差异，表示采取保守治疗。由于每个象限都能给出明确的治疗指导原则，因此该原理很容易编程，以便在小型便携的微处理器中使用。
