9 R e f e r e n c i a s o b s t é t r i c a s
Área del tronco fetal, Osaka
Aoki M, Yamada M. "Examining Fetal Growth."
ATF
ATF
2
2
cm
días
cm
días
6.0
100
20.0
144
7.0
104
21.0
147
8.0
108
22.0
149
9.0
111
23.0
152
10.0
115
24.0
154
11.0
118
25.0
157
12.0
121
26.0
159
13.0
124
27.0
161
14.0
127
28.0
164
15.0
130
29.0
166
16.0
133
30.0
168
17.0
136
31.0
170
18.0
139
32.0
173
19.0
142
33.0
175
Longitud del fémur, Hadlock
Hadlock FP, Deter RL, Harrist RB, Park SK. "Estimating Fetal Age: Computer-Assisted Analysis of Multiple Fetal Growth
Radiology
Parameters."
152:497, 1984.
EM = 10,35 + 2,460 * (LF) + 0,170 * (LF²)
± 2 Desviaciones estándar:
12-18 sem ± 1.38 sem (10 días)
18-24 sem ± 1.80 sem (13 días)
24-30 sem ± 2.08 sem (15 días)
LF
±
LF
mm sems. Días 2DS
mm sems. Días 2DS
7.0 12
01
10
23.6 17
01
7.2 12
01
10
23.9 17
01
7.3 12
02
10
24.0 17
02
7.7 12
02
10
24.3 17
02
7.8 12
03
10
24.4 17
03
8.2 12
03
10
24.8 17
03
8.3 12
04
10
24.9 17
04
8.7 12
04
10
25.2 17
04
8.8 12
05
10
25.3 17
05
9.3 12
05
10
25.6 17
05
9.4 12
06
10
25.7 17
06
9.8 12
06
10
26.0 17
06
9.9 13
00
10
26.1 18
00
10.3 13
00
10
26.5 18
00
10.4 13
01
10
26.6 18
01
10.8 13
01
10
26.9 18
01
10.9 13
02
10
27.0 18
02
11.3 13
02
10
27.3 18
02
11.4 13
03
10
27.4 18
03
11.8 13
03
10
27.7 18
03
11.9 13
04
10
27.8 18
04
12.3 13
04
10
28.2 18
04
12.4 13
05
10
28.3 18
05
12.8 13
05
10
28.6 18
05
12.9 13
06
10
28.7 18
06
13.3 13
06
10
29.0 18
06
13.4 14
00
10
29.1 19
00
13.8 14
00
10
29.4 19
00
13.9 14
01
10
29.5 19
01
14.2 14
01
10
29.8 19
01
14.3 14
02
10
29.9 19
02
14.7 14
02
10
30.2 19
02
14.8 14
03
10
30.3 19
03
15.2 14
03
10
30.6 19
03
15.3 14
04
10
30.7 19
04
15.7 14
04
10
31.0 19
04
15.8 14
05
10
31.1 19
05
16.2 14
05
10
31.4 19
05
16.3 14
06
10
31.5 19
06
16.6 14
06
10
31.9 19
06
16.7 15
00
10
32.0 20
00
17.1 15
00
10
32.3 20
00
17.2 15
01
10
32.4 20
01
17.6 15
01
10
32.7 20
01
17.7 15
02
10
32.8 20
02
18.0 15
02
10
33.1 20
02
18.1 15
03
10
33.2 20
03
18.5 15
03
10
33.5 20
03
18.6 15
04
10
33.6 20
04
19.0 15
04
10
33.8 20
04
19.1 15
05
10
33.9 20
05
19.4 15
05
10
34.2 20
05
19.5 15
06
10
34.3 20
06
19.9 15
06
10
34.6 20
06
20.0 16
00
10
34.7 21
00
20.3 16
00
10
35.0 21
00
20.4 16
01
10
35.1 21
01
20.8 16
01
10
35.4 21
01
20.9 16
02
10
35.5 21
02
21.2 16
02
10
35.8 21
02
21.3 16
03
10
35.9 21
03
21.7 16
03
10
36.2 21
03
21.8 16
04
10
36.3 21
04
22.1 16
04
10
36.6 21
04
22.2 16
05
10
36.7 21
05
22.6 16
05
10
37.0 21
05
22.7 16
06
10
37.1 21
06
23.0 16
06
10
37.4 21
06
23.1 17
00
10
37.5 22
00
23.5 17
00
10
37.7 22
00
9 - 1 4
Obstetrics and Gynecology
ATF
ATF
2
cm
días
cm
34.0
177
48.0
35.0
179
49.0
36.0
181
50.0
37.0
183
51.0
38.0
185
52.0
39.0
187
53.0
40.0
189
54.0
41.0
191
55.0
42.0
193
56.0
43.0
195
57.0
44.0
197
58.0
45.0
199
59.0
46.0
201
60.0
47.0
203
61.0
±
LF
±
LF
mm sems. Días 2DS
mm sems. Días 2DS
10
37.8 22
01
13
50.5 27
10
38.1 22
01
13
50.7 27
10
38.2 22
02
13
50.8 27
10
38.5 22
02
13
51.0 27
10
38.6 22
03
13
51.1 27
10
38.9 22
03
13
51.4 27
10
39.0 22
04
13
51.5 27
10
39.2 22
04
13
51.7 27
10
39.3 22
05
13
51.8 27
10
39.6 22
05
13
52.1 27
10
39.7 22
06
13
52.2 27
10
40.0 22
06
13
52.4 27
13
40.1 23
00
13
52.5 28
13
40.4 23
00
13
52.7 28
13
40.5 23
01
13
52.8 28
13
40.7 23
01
13
53.1 28
13
40.8 23
02
13
53.2 28
13
41.1 23
02
13
53.4 28
13
41.2 23
03
13
53.5 28
13
41.5 23
03
13
53.7 28
13
41.6 23
04
13
53.8 28
13
41.9 23
04
13
54.1 28
13
42.0 23
05
13
54.2 28
13
42.2 23
05
13
54.4 28
13
42.3 23
06
13
54.5 28
13
42.6 23
06
13
54.7 28
13
42.7 24
00
15
54.8 29
13
43.0 24
00
15
55.1 29
13
43.1 24
01
15
55.2 29
13
43.3 24
01
15
55.4 29
13
43.4 24
02
15
55.5 29
13
43.7 24
02
15
55.7 29
13
43.8 24
03
15
55.8 29
13
44.0 24
03
15
56.0 29
13
44.1 24
04
15
56.1 29
13
44.4 24
04
15
56.4 29
13
44.5 24
05
15
56.5 29
13
44.8 24
05
15
56.7 29
13
44.9 24
06
15
56.8 29
13
45.1 24
06
15
57.0 29
13
45.2 25
00
15
57.1 30
13
45.5 25
00
15
57.3 30
13
45.6 25
01
15
57.4 30
13
45.8 25
01
15
57.7 30
13
45.9 25
02
15
57.8 30
13
46.2 25
02
15
58.0 30
13
46.3 25
03
15
58.1 30
13
46.5 25
03
15
58.3 30
13
46.6 25
04
15
58.4 30
13
46.9 25
04
15
58.6 30
13
47.0 25
05
15
58.7 30
13
47.2 25
05
15
59.0 30
13
47.3 25
06
15
59.1 30
13
47.6 25
06
15
59.3 30
13
47.7 26
00
15
59.4 31
13
47.9 26
00
15
59.6 31
13
48.0 26
01
15
59.7 31
13
48.3 26
01
15
59.9 31
13
48.4 26
02
15
60.0 31
13
48.6 26
02
15
60.2 31
13
48.7 26
03
15
60.3 31
13
49.0 26
03
15
60.5 31
13
49.1 26
04
15
60.6 31
13
49.3 26
04
15
60.9 31
13
49.4 26
05
15
61.0 31
13
49.7 26
05
15
61.2 31
13
49.8 26
06
15
61.3 31
13
50.0 26
06
15
61.5 31
13
50.1 27
00
15
61.6 32
13
50.4 27
00
15
61.8 32
47:547-556, 1983.
ATF
2
2
días
cm
días
205
62.0
231
207
63.0
233
209
64.0
235
210
65.0
236
212
66.0
238
214
67.0
240
216
68.0
242
218
69.0
244
220
70.0
246
222
71.0
248
223
72.0
250
225
73.0
252
227
74.0
254
229
75.0
256
30-36 sem ± 2.96 sem (21 días)
36-42 sem ± 3.12 sem (22 días)
±
LF
mm sems. Días 2DS
01
15
61.9 32
01
01
15
62.1 32
01
02
15
62.2 32
02
02
15
62.4 32
02
03
15
62.5 32
03
03
15
62.7 32
03
04
15
62.8 32
04
04
15
63.1 32
04
05
15
63.2 32
05
05
15
63.4 32
05
06
15
63.5 32
06
06
15
63.7 32
06
00
15
63.8 33
00
00
15
64.0 33
00
01
15
64.1 33
01
01
15
64.3 33
01
02
15
64.4 33
02
02
15
64.6 33
02
03
15
64.7 33
03
03
15
64.9 33
03
04
15
65.0 33
04
04
15
65.2 33
04
05
15
65.3 33
05
05
15
65.5 33
05
06
15
65.6 33
06
06
15
65.8 33
06
00
15
65.9 34
00
00
15
66.1 34
00
01
15
66.2 34
01
01
15
66.4 34
01
02
15
66.5 34
02
02
15
66.7 34
02
03
15
66.8 34
03
03
15
67.0 34
03
04
15
67.1 34
04
04
15
67.3 34
04
05
15
67.4 34
05
05
15
67.6 34
05
06
15
67.7 34
06
06
15
67.9 34
06
00
21
68.0 35
00
00
21
68.2 35
00
01
21
68.3 35
01
01
21
68.5 35
01
02
21
68.6 35
02
02
21
68.8 35
02
03
21
68.9 35
03
03
21
69.1 35
03
04
21
69.2 35
04
04
21
69.4 35
04
05
21
69.5 35
05
05
21
69.7 35
05
06
21
69.8 35
06
06
21
70.0 35
06
00
21
70.1 36
00
00
21
70.3 36
00
01
21
70.4 36
01
01
21
70.6 36
01
02
21
70.7 36
02
02
21
70.9 36
02
03
21
71.0 36
03
03
21
71.2 36
03
04
21
71.3 36
04
04
21
71.5 36
04
05
21
71.6 36
05
05
21
71.8 36
05
06
21
71.9 36
06
06
21
72.1 36
06
00
21
72.2 37
00
00
21
72.4 37
00
R E F E R E N C I A
ATF
2
cm
días
76.0
258
77.0
260
78.0
262
79.0
264
80.0
266
81.0
268
82.0
270
83.0
272
84.0
274
85.0
276
86.0
279
±
LF
±
mm sems. Días 2DS
21
72.5 37
01
22
21
72.6 37
01
22
21
72.7 37
02
22
21
72.9 37
02
22
21
73.0 37
03
22
21
73.2 37
03
22
21
73.3 37
04
22
21
73.5 37
04
22
21
73.6 37
05
22
21
73.8 37
05
22
21
73.9 37
06
22
21
74.1 37
06
22
21
74.2 38
00
22
21
74.4 38
00
22
21
74.5 38
01
22
21
74.7 38
01
22
21
74.8 38
02
22
21
74.9 38
02
22
21
75.0 38
03
22
21
75.2 38
03
22
21
75.3 38
04
22
21
75.5 38
04
22
21
75.6 38
05
22
21
75.8 38
05
22
21
75.9 38
06
22
21
76.1 38
06
22
21
76.2 39
00
22
21
76.4 39
00
22
21
76.5 39
01
22
21
76.6 39
01
22
21
76.7 39
02
22
21
76.9 39
02
22
21
77.0 39
03
22
21
77.2 39
03
22
21
77.3 39
04
22
21
77.5 39
04
22
21
77.6 39
05
22
21
77.8 39
05
22
21
77.9 39
06
22
21
78.0 39
06
22
21
78.1 40
00
22
21
78.3 40
00
22
21
78.4 40
01
22
21
78.6 40
01
22
21
78.7 40
02
22
21
78.9 40
02
22
21
79.0 40
03
22
21
79.2 40
03
22
21
79.3 40
04
22
21
79.4 40
04
22
21
79.5 40
05
22
21
79.7 40
05
22
21
79.8 40
06
22
21
80.0 40
06
22
22
80.1 41
00
22
22
80.3 41
00
22
22
80.4 41
01
22
22
80.5 41
01
22
22
80.6 41
02
22
22
80.8 41
02
22
22
80.9 41
03
22
22
81.1 41
03
22
22
81.2 41
04
22
22
81.4 41
04
22
22
81.5 41
05
22
22
81.6 41
05
22
22
81.7 41
06
22
22
81.9 41
06
22
22
82.0 42
00
22
22
D E L
S I S T E M A