Establishing Treatment Nomogram - Medtronic Prostiva 8930 Guía Para El Usuario

8930EN_4.fm 12/17/10 2:44 pm
UCxxxxxx EN
7 x 9 inches (178 mm x 229 mm)

Establishing Treatment Nomogram

MA07445A008 Rev X
The Hand Piece has six preset lengths ranging from 12-22 mm
with 2 mm increments. The needle shields automatically retract to
protect the urethra. Table 4-1 shows the recommended guidelines
based on clinical experience for needle settings. These settings
are calculated by using the formula shown in Figure 4-2. Needle
lengths may need to be adjusted when treating the apex and base
regions versus the midpoint region.
The selection of the appropriate needle length is in the
clinician's sole medical judgement.
Table 4-1. Typical Needle Settings From Step 3 Measurement
Transverse
Measurement Range
(mm)
36
36-40
40-44
44-48
48-52
52-56
56-80
Needle length is typically calculated by taking one half of the
transverse diameter of the prostate and subtracting 6 millimeters
as shown in the following equation:
NL = TM - 6 mm
2
Figure 4-2. Needle Length Calculation Formula
Note: For odd-numbered transverse measurements, round
down for the needle length selection.
Prostiva RF Therapy Procedure
Patient Assessment
Needle Length (mm)
12
12, 14
14, 16
16, 18
18, 20
20, 22
22
NL
TM
2010-12 8930 System User Guide English
Medtronic Confidential
CRMRef_R06
63